Best Whole House Water Filters 2026: Lab & Hands-On Testing

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Authors: Sara, Adam, and Raoul | Last Updated: 2026/08/16

About This Guide

So far, we’ve tested and compared 9 whole house water filters, with more to follow. For each system, we:

  1. Hands-on experience: Set up, used, and maintained it.
  2. Filtration effectiveness: Sent unfiltered and filtered tap water samples to a professional lab for analysis in order to determine real-life contaminant reduction capabilities. Plus, we checked for NSF/ANSI certifications and other test data.
  3. More testing: Performed taste & odor tests.
  4. All other product aspects: Considered initial + long-term costs, warranties, additional features, frequent customer complaints, etc.

DIY Systems Only!

This guide covers DIY whole house water filters only – systems you can buy directly and install yourself, with no appointments, in-home consultations, or professional installation required.

Our Top 5 Whole House Water Filters at a Glance

Model Image Rating Buy Here
USWS Bodyguard Plus
(Incl. Interceptor Pre-Filter)
USWS Bodyguard Plus (Incl. Interceptor Pre-Filter) trophy top pick

4.69/5.00

Check Current Price
USWS Bodyguard Plus (Incl. Interceptor Pre-Filter)
Verdict (Best For): #1 for More Demanding City Water Supplies
 
Improving Overall Water Quality, Taste, and Odor
Primarily Removes: Chlorine/Chloramine, Disinfection Byproducts, PFAS, Pesticides, Pharmaceuticals, Other Organics, Certain Metals Incl. Lead, Sediment
FiltrationFiltration score combines our lab results and taste testing with an evaluation of the filter media.: 5.00/5.00
Usability: 5.00/5.00
CostsCost scores reflect overall value for money rather than price alone.: 3.43/5.00
Buy Here: uswatersystems.com (Use Code BESTRO-5 for 5% Off!)
Review: Coming Soon
Additional Link(s): Regular Bodyguard System w/o Backwashing: uswatersystems.com (Use Code BESTRO-5 for 5% Off!)
SpringWell CF SpringWell CF trophy top pick

4.66/5.00

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SpringWell CF
Verdict (Best For): #1 for Standard City Water and Easy Installation
 
Improving Overall Water Quality, Taste, and Odor
Primarily Removes: Chlorine/Chloramine, Disinfection Byproducts, PFAS, Pesticides, Pharmaceuticals, Other Organics, Certain Metals Incl. Lead, Sediment
FiltrationFiltration score combines our lab results and taste testing with an evaluation of the filter media.: 4.75/5.00
Usability: 5.00/5.00
CostsCost scores reflect overall value for money rather than price alone.: 4.07/5.00
Buy Here: springwellwater.com (Use Code BOS5OFF for 5% Off!)
Review: Coming Soon
Purcooflow WHF2045B303 Purcooflow WHF2045B303 trophy top pick

4.61/5.00

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Purcooflow WHF2045B303
Verdict (Best For): #1 Cartridge-Based (3-Stage)
 
Improving Overall Water Quality, Taste, and Odor
Primarily Removes: Chlorine/Chloramine, Disinfection Byproducts, PFAS, Pesticides, Pharmaceuticals, Other Organics, Certain Metals Incl. Lead, Sediment
FiltrationFiltration score combines our lab results and taste testing with an evaluation of the filter media.: 4.75/5.00
Usability: 4.75/5.00
CostsCost scores reflect overall value for money rather than price alone.: 4.05/5.00
Buy Here: purcooflow.com (Use Code BOSWATER for $140 Off!)
Review: Coming Soon
Kind E-1000 Kind E-1000 trophy great

4.50/5.00

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Kind E-1000
Verdict (Best For): #1 Cartridge-Based (2-Stage)
 
Improving Overall Water Quality, Taste, and Odor
Primarily Removes: Chlorine/Chloramine, Disinfection Byproducts, PFAS, Pesticides, Pharmaceuticals, Other Organics, Certain Metals Incl. Lead, Sediment
FiltrationFiltration score combines our lab results and taste testing with an evaluation of the filter media.: 4.75/5.00
Usability: 4.50/5.00
CostsCost scores reflect overall value for money rather than price alone.: 3.74/5.00
Buy Here: kindwater.com (Use Code KIND50 for $50 Off!)
Review: Coming Soon
USWS Bodyguard Fluoride Removal Filter USWS Bodyguard Fluoride Removal Filter trophy great

4.74/5.00

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USWS Bodyguard Fluoride Removal Filter
Verdict (Best For): #1 for Fluoride Reduction
Primarily Removes: Fluoride
Comment: Chlorine Needs to Be <0.1 ppm so We Recommend the USWS Bodyguard Plus or Another Carbon-Based Whole House Filter for Pre-Treatment
FiltrationFiltration score combines our lab results and taste testing with an evaluation of the filter media.: 5.00/5.00
Usability: 4.60/5.00
CostsCost scores reflect overall value for money rather than price alone.: 4.10/5.00
Buy Here: uswatersystems.com (Use Code BESTRO-5 for 5% Off!)
Review: Coming Soon

9 Whole House Water Filters Compared

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Whole House Water Filter USWS Bodyguard Plus
(Incl. Interceptor Pre-Filter)
SpringWell CF Purcooflow WHF2045B303 Kind E-1000 USWS Bodyguard Fluoride Removal Filter Express Water 3-Stage Essential (WH-300RS-CGS) Waterdrop WHF3T-PG Aquasana Rhino WH-1000 & Rhino Max Flow WH-1010 iSpring WGB32B-KSNC
Purchase Links & Codes
uswatersystems.com springwellwater.com purcooflow.com kindwater.com uswatersystems.com expresswater.com (Deluxe Version Only) waterdropfilter.com Regular Size (Up to 2.5 Baths): aquasana.com ispringfilter.com
OR OR OR OR
Amazon Amazon Max Flow (Up to 6 Baths): aquasana.com Amazon
BESTRO-5 – 5% Off! BOS5OFF – 5% Off! BOSWATER – $140 Off! KIND50 – $50 Off! BESTRO-5 – 5% Off! WH3TBOS – 5% Off on Top of Most Waterdrop Sales! (waterdropfilter.com Only) AQBOS50 – Up to 50% Off!
Image USWS Bodyguard Plus SpringWell CF1 Purcooflow WHF2045B303 Kind E-1000 USWS Bodyguard Fluoride Removal Filter Express Water 3-Stage Essential Waterdrop WHF3T-PG Aquasana Rhino WH-1000 iSpring WGB32B-KSNC
Type Media Tank Media Tank Cartridge-Based Cartridge-Based Media Tank Cartridge-Based Cartridge-Based Media Tank Cartridge-Based
FINAL RATING
trophy top pick trophy top pick trophy top pick trophy great trophy great
Final Rating 4.69/5.00 4.66/5.00 4.61/5.00 4.50/5.00 4.74/5.00 4.53/5.00 4.39/5.00 4.14/5.00 3.92/5.00
Verdict (Best For) #1 for More Demanding City Water Supplies
 
Improving Overall Water Quality, Taste, and Odor
#1 for Standard City Water and Easy Installation
 
Improving Overall Water Quality, Taste, and Odor
#1 Cartridge-Based (3-Stage)
 
Improving Overall Water Quality, Taste, and Odor
#1 Cartridge-Based (2-Stage)
 
Improving Overall Water Quality, Taste, and Odor
#1 for Fluoride Reduction Solid Budget Pick
 
Improving Overall Water Quality, Taste, and Odor
Primarily Removes -Chlorine/Chloramine
-DBPs, PFAS, Pesticides, and Other Organics
-Certain Metals Incl. Lead
-Sediment
-Chlorine/Chloramine
-DBPs, PFAS, Pesticides, and Other Organics
-Certain Metals Incl. Lead
-Sediment
-Chlorine/Chloramine
-DBPs, PFAS, Pesticides, and Other Organics
-Certain Metals Incl. Lead
-Sediment
-Chlorine/Chloramine
-DBPs, PFAS, Pesticides, and Other Organics
-Certain Metals Incl. Lead
-Sediment
-Fluoride -Chlorine
-DBPs, PFAS, Pesticides, and Other Organics
-Certain Metals Incl. Lead
-Sediment
-Chlorine
-DBPs, PFAS, Pesticides, and Other Organics
-Certain Metals Incl. Lead
-Sediment
-Chlorine
-DBPs, PFAS, Pesticides, and Other Organics
-Certain Metals Incl. Lead
-Sediment
-Chlorine/Chloramine
-DBPs, PFAS, Pesticides, and Other Organics
-Certain Metals Incl. Lead
-Sediment
Comment USWS Bodyguard Plus or Another Carbon-Based Whole House Filter Is Recommended for Pre-Treatment Not for Chloramine! Not for Chloramine! Not for Chloramine!
Buy Here uswatersystems.com springwellwater.com purcooflow.com kindwater.com uswatersystems.com expresswater.com (Deluxe Version Only) waterdropfilter.com Regular Size (Up to 2.5 Baths): aquasana.com ispringfilter.com
OR OR OR OR
Amazon Amazon Max Flow (Up to 6 Baths): aquasana.com Amazon
Discount Code BESTRO-5 – 5% Off! BOS5OFF – 5% Off! BOSWATER – $140 Off! KIND50 – $50 Off! BESTRO-5 – 5% Off! WH3TBOS – 5% Off on Top of Most Waterdrop Sales! (waterdropfilter.com Only) AQBOS50 – Up to 50% Off!
Additional Link(s) Regular Bodyguard System w/o Backwashing: uswatersystems.com
Score Overview
FiltrationFiltration score combines our lab results and taste testing with an evaluation of the filter media. 5.00/5.00 4.75/5.00 4.75/5.00 4.75/5.00 5.00/5.00 4.58/5.00 4.41/5.00 4.58/5.00 4.08/5.00
Usability 5.00/5.00 5.00/5.00 4.75/5.00 4.50/5.00 4.60/5.00 4.60/5.00 4.25/5.00 4.15/5.00 4.65/5.00
CostsCost scores reflect overall value for money rather than price alone. 3.43/5.00 4.07/5.00 4.05/5.00 3.74/5.00 4.10/5.00 4.31/5.00 4.47/5.00 2.82/5.00 2.73/5.00
Full Analysis
PriceNo short-term sales. (Jul 20, 2026) $1,549 to $2,049 (Depending on the Size You Pick) $1,170 to $2,160 (Depending on the Size You Pick) $439.99 $927.64 (Save 10% with Filter Subscription) $1,299 to $2,109 (Depending on the Size You Pick) $415.75 $369.99 $999 or $1,399 (Depending on the Size You Pick) $639.99
Sizes -10 gpm (Up to 3 Baths)
-15 gpm (Up to 6 Baths)
-20 gpm (Up to 8 Baths)
-CF1: 9 gpm (1-3 Baths)
-CF4: 12 gpm (4-6 Baths)
-CF+: 20 gpm (7+ Baths)
-Up to 15 gpm -Up to 15 gpm (Up to 6 Baths) -10 gpm (Up to 3 Baths)
-15 gpm (Up to 6 Baths)
-20 gpm (Up to 8 Baths)
-Up to 15 gpm (Up to 6 Baths) -Up to 15 gpm (Up to 6 Baths) -Rhino WH-1000: 7 gpm (Up to 2.5 Baths)
-Rhino Max Flow WH-1010: 14 gpm (Up to 6 Baths)
-Up to 15 gpm
Lab Results 5.00/5.00 5.00/5.00 5.00/5.00 5.00/5.00 5.00/5.00 5.00/5.00 5.00/5.00 5.00/5.00 4.33/5.00
Taste Test Extremely Clean Great Improvement but Not 100% Perfect Great Improvement but Not 100% Perfect Great Improvement but Not 100% Perfect Didn’t Affect Taste Great Improvement but Not 100% Perfect Great Improvement but Not 100% Perfect Great Improvement but Not 100% Perfect Great Improvement but Not 100% Perfect
Odor Test No Odor No Odor No Odor No Odor Didn’t Affect Odor No Odor No Odor No Odor No Odor
Setup Process Incl. System Startup -Generally DIY-Friendly but You Need to Know What You’re Doing, Plan Ahead, and Have the Right Tools
-Straightforward as Long as You Follow the Detailed Instructions (Manual Includes Photos)
-Smart Valve Was Quick and Easy to Program (Can Be Connected to Android/Apple Device Via Bluetooth Using the Free Legacy View App but We Used the Valve Itself)
-Tutorial Video on YouTube
-Generally DIY-Friendly but You Need to Know What You’re Doing, Plan Ahead, and Have the Right Tools
-Straightforward as Long as You Follow the Clear Instructions (Manual Includes Photos)
-Plastic Cap of Pressure Relief on Sediment Filter Housing Snapped Off While Tightening but We Were Able to Put on a Replacement Brass Cap
-Plastic Mounting Bracket of Sediment Post-Filter Feels Lower Quality When Compared to a Metal Bracket
-Tutorial Video on YouTube
-Generally DIY-Friendly but You Need to Know What You’re Doing, Plan Ahead, and Have the Right Tools
-Pretty Easy and Simpler Than With Systems Featuring a Large Media Tank
-Clear Step-by-Step Instructions Including Sketches, Except There Was No Guide to Change Water Flow Direction From Left to Right
-“IN-OUT” Sticker Is No Longer Valid Due to Our Change in Flow Direction
-Generally DIY-Friendly but You Need to Know What You’re Doing, Plan Ahead, and Have the Right Tools
-Pretty Easy and Simpler Than With Systems Featuring a Large Media Tank
-Instructions Aren’t Bad but Lacked Corresponding Photos for Installation Steps (There Are Examples of Fully Installed Units)
-Fairly Lightweight and Doesn’t Take Up Too Much Space
-Everything Came in 1 Smaller Box and Was Packaged Very Well (Easier to Handle Than Other Systems)
-Package Included Lag Bolts and Tapcon Screws
-Generally DIY-Friendly but You Need to Know What You’re Doing, Plan Ahead, and Have the Right Tools
-Straightforward as Long as You Follow the Detailed Instructions (Manual Includes Photos)
-System Came Pre-Filled and Some of the Installation Steps Had Already Been Completed so We Didn’t Know Where to Continue at First
-Generally DIY-Friendly but You Need to Know What You’re Doing, Plan Ahead, and Have the Right Tools
-Pretty Easy and Simpler Than With Systems Featuring a Large Media Tank
-Instructions Are Pretty Clear Including Photos, Except There Was No Guide to Change Water Flow Direction From Left to Right
-Pre-Applied Stickers for “1st Stage”, “2nd Stage” & “3rd Stage” Are No Longer Valid Due to Our Change in Flow Direction
-No Mounting Screws Included
-Tutorial Video on YouTube
-Generally DIY-Friendly but You Need to Know What You’re Doing, Plan Ahead, and Have the Right Tools
-Pretty Easy and Simpler Than With Systems Featuring a Large Media Tank
-Informative Instructions Including Some Sketches but No Photos or Labels for the 3 Cartridges, so You Must Check Online to Identify Them and There’s No Warning That Filters Must Be Installed in a Specific Sequence
-Filters Weren’t Wrapped in Plastic
-Generally DIY-Friendly but You Need to Know What You’re Doing, Plan Ahead, and Have the Right Tools
-Straightforward (With Some Extra Steps) as Long as You Follow the Clear Step-by-Step Instructions (Manual Includes Some Sketches but Must Be Printed After Scanning the QR Code on the Unit)
-2 Plastic Nipples Were Already Glued to the Left Slip Union but Would Not Thread into the Left Port of the Main Filter Stage or the Pre-Filter (Though They Fit Other Ports), so We Used Our Own Metal Fittings Which Worked Fine
-We Skipped the Included Shutoff Valve Since We Already Had One Installed and All the Plastic Components Don’t Appear Very Solid (the Base Unit Does)
-Part of the Valve Connecting the 2 Main Tanks Appeared Slightly Damaged but It Did Not Cause Leaks
-Tutorial Video on YouTube
-Generally DIY-Friendly but You Need to Know What You’re Doing, Plan Ahead, and Have the Right Tools
-Pretty Easy and Simpler Than With Systems Featuring a Large Media Tank
-Clear Step-by-Step Instructions Including Some Sketches
-No Mounting Screws Included
-QR Code Links to Tutorial Video
Everyday Use -Straightforward and Without Issues
-We Were Impressed by How Clean the Water Felt When Showering + We Saw Skin Improvements
-App Allows You to Monitor Current Water Flow, Water Usage/Peak Flow Today, Days Until Next Backwash, Average Daily Water Usage, Total Regenerations, Total Gallons Treated
-You Can Trigger Backwashing Cycles Using Valve/App
-Straightforward and Without Issues
-Water Felt Cleaner When Showering
-Straightforward and Without Issues -Straightforward and Without Issues
-Water Felt Cleaner When Showering
-Straightforward and Without Issues -Straightforward and Without Issues
-Water Felt Cleaner When Showering
-Straightforward and Without Issues
-Water Felt Cleaner When Showering
-Straightforward and Without Issues
-Water Felt Cleaner When Showering
-Straightforward and Without Issues
Filter Cartridge & Filter Media Replacements -Replacing the Interceptor Filter Cartridge Is Straightforward (Wrench Included)
-Replacing the Filter Media in the Large Tanks Shouldn’t Be Overly Complicated
-App Helps to Better Estimate When It’s Time to Replace Filter Elements
-Replacing the Sediment Filter Cartridge Is Straightforward (Wrench Included + Pressure Release Valve)
-Replacing the Filter Media in the Large Tank Shouldn’t Be Overly Complicated
-Replacing the Filter Cartridges Is Straightforward with Adequate Clearance for the Included Wrench + a Drain Valve on Each Housing Releases Pressure and Empties Water Before You Open It
-Pressure Release Button on Each Filter Stage
-Maintenance Record With Lanyard Helps to Keep Track
-Replacing the Filter Cartridges Is Straightforward with Adequate Clearance for the Included Wrench -Replacing the Filter Media in the Large Tanks Shouldn’t Be Overly Complicated -Replacing the Filter Cartridges Is Straightforward with Adequate Clearance for the Included Wrench -Replacing the Filter Cartridges Is Straightforward with Adequate Clearance for the Small Yet Effective Wrench (Pressure Release Button on Each Filter Stage)
-Metal Tag on System Module Mentions Filter Lifetimes to Help Keep Track
-Replacing the Sediment Filter Cartridges Is Straightforward (Wrench Included) + the Drain Valve Releases Pressure and Empties Some of the Water Before You Open the Filter Housings
-Pressure Release Valve on Both Sediment Filter Stages
-Instead of Replacing the Filter Media in the Large Tanks, You Replace the Tanks Themselves Which Is Straightforward and Time-Saving but Expensive
-Replacing the Filter Cartridges Is Straightforward with Adequate Clearance for the Included Wrench
Filter Media/Process Interceptor Pre-Filter: 4.5″x10/20″, 5-Micron Pleated Outer Wrap With Pleated Nano Fiber Core (Mechanical + Ionical Filtration)
 
Bodyguard Plus: 10/15/20 lbs Washed Quartz Gravel, 0.5/1.0 cu. ft. Coconut GAC, 0.5/1.0 cu. ft. Coconut Catalytic Carbon
KDF, Coconut Catalytic Carbon
 
Sediment Post-Filter: 5-Micron Melt-Blown, 4.5″x10″
Stage 1: 5-Micron PP Sediment Filter, 4.5″x20″
 
Stage 2: Activated Carbon Block, 4.5″x20″
 
Stage 3: Catalytic Carbon Block, 4.5″x20″
Stage 1: 5-Micron Pleated Sediment Filter, 4.5″x20″
 
Stage 2: Coconut Catalytic Carbon Block, 4.5″x20″
Washed Quartz Gravel, 1.0/1.5/2.0 cu. ft. Bone Char Stage 1: 5-Micron PP Sediment Filter, 4.5″x20″
 
Stage 2: 5-Micron Coconut Granular Activated Carbon, 4.5″x20″
 
Stage 3: 5-Micron Coconut Activated Carbon Block, 4.5″x20″
Stage 1: 5-Micron Grooved PP Sediment Filter, 4.5″x20″
 
Stage 2: GAC + KDF Composite Filter, 4.5″x20″
 
Stage 3: Carbon Fiber + 5-Micron PP + GAC Composite Filter, 4.5″x20″
Stage 1: Sediment Pre-Filter, 2.5×20″
 
Stages 2+3: Dual-Tank Design Combining KDF (Top Tank, Upflow) With GAC (Bottom Tank, Downflow)
 
Stage 4: Polishing Post-Filter, 2.5″x10″
Stage 1: 5-Micron PP Sediment Filter, 4.5″x20″
 
Stage 2: Granular Activated Carbon + KDF, 4.5″x20″
 
Stage 3: Catalytic Carbon Block, 4.5″x20″
Summary of NSF/ANSI Certs + Other Testing for Filtration Effectiveness -No NSF/ANSI Certifications or Third-Party Testing for Contaminant Reduction -No NSF/ANSI Certifications or Third-Party Testing for Contaminant Reduction -No NSF/ANSI Certifications for Contaminant Reduction
-Third-Party Testing for PFOA + PFOS but Only Tested at the Start of the Filter Life
-No NSF/ANSI Certifications or Third-Party Testing for Contaminant Reduction -No NSF/ANSI Certifications or Third-Party Testing for Contaminant Reduction -No NSF/ANSI Certifications or Third-Party Testing for Contaminant Reduction -No NSF/ANSI Certifications or Third-Party Testing for Contaminant Reduction -No NSF/ANSI Certifications for Contaminant Reduction
-Third-Party Testing for a Single Contaminant (Chlorine) but Tested Against Entire 1,000,000 gal Filter Life
-No NSF/ANSI Certifications or Third-Party Testing for Contaminant Reduction
NSF/ANSI Certs for Filtration Effectiveness (# of Impurities Certified)
NSF/ANSI + Other 3rd-Party Testing for Filtration Effectiveness (# of Impurities Tested)
Note: Not Always Performed Throughout Entire Filter Life
53 (2) – Performance Data Sheet 42 (1) – Performance Data Sheet
Flow Direction Downflow (Backwashing) Upflow Upflow
Valve Type Programmable Smart Valve Simple Simple
Bypass Valve? Y Optional N N Y N N N N
System Dimensions 54/58/61″x9/10/12″ (Hx⌀, Incl. Valve) 52/58/58″x9/10/13″ (Hx⌀, Incl. Valve) 21.85″x27.16″x7.87″ (WxHxD) 15.5″x29″x8″ (WxHxD) 52.5/56.5/58.5″x9/10/12″ (Hx⌀, Incl. Valve) 23″x27″x9″ (WxHxD) 22.91″x26.18″x8.46″ (WxHxD) 32/34″x46/57″x9/11″ (WxHxD) 24.5″x28″x8″ (WxHxD)
Pre/Post-Filter Hx⌀ 13.5/23.5″x7.5″ 14″x6″
Plumbing Connections ¾” or 1″ 1/1/1.5″ 1″ 1″ 1″ 1″ 1″ ¾” or 1″ 1″
Backwash Standard Duration: 22 Minutes
 
Required Flow Rate: 4/5/10 gpm
 
Wastewater: 140 gal/Cycle
Feed Water Requirements -pH: 5-9.5
-Iron: <0.3 ppm
-Manganese: <0.05 ppm
-Turbidity: <3 NTU
-Sulfur: 0
-Not for Well Water Containing Sulfur/Hydrogen Sulfide, Oils, Iron, Manganese
-Copper: <1.3 ppm
-pH: 6-11 -pH: 6.5-9.5
-Iron: 0 ppm
-Hydrogen Sulfide: 0 ppm
-pH: 6.5-8.5
-Chlorine: <0.1 ppm
-Ferrous Iron: <0.1 ppm
-pH: 6-11
Rated/Claimed Filter Life Interceptor Pre-Filter: 6-12 Months
 
Carbon: 1,000,000 or 5 Years
Carbon: 1,000,000 or 6-10 Years
 
Sediment Post-Filter: 6-9 Months
Sediment Filter: 30,000 gal or 3-6 Months
 
Activated Carbon Block: Up to 100,000 gal or 6-12 Months
 
Catalytic Carbon Block: Up to 100,000 gal or 6-12 Months
Up to 12 Months Bone Char: 400,000 or 3 Years Up to 100,000 gal or 6-12 Months Up to 100,000 gal or 12 Months Sediment Pre-Filter: Up to 2 Months
 
Dual Tank: 1,000,000 gal or 10 Years
 
Polishing Post-Filter: 6 Months
Sediment Filter: Up to 100,000 gal or 3-12 Months
 
GAC + KDF Filter: Up to 150,000 gal or 10-12 Months
 
Catalytic Carbon Block: Up to 100,000 gal or 12 Months
Maintenance CostEstimate is based on rated/claimed filter life. No short-term sales. (Jul 20, 2026) Interceptor Pre-Filter Cartridges: ~$110-340 Per Year (Depending on the Size You Pick, Save 10% with Filter Subscription)
 
Gravel + Carbon Media: ~$237-416 (Depending on the Size You Pick, About Every 5 Years)
KDF, Carbon: ~$352 (About Every 6-10 Years)
 
Sediment Post-Filter Cartridges: ~$28-42 Per Year (Save 5% with Filter Subscription)
~$215-435 Per Year ~$155 Per Year (Save 20% with Filter Subscription) Gravel + Bone Char Media: ~$600-1,150 (Depending on the Size You Pick, About Every 3 Years) ~$110-220 Per Year (Save 10% with Filter Subscription) ~$110 Per Year (Save 5% with Filter Subscription) Dual Tank: $949 or $1,299 (Depending on the Size You Pick, About Every 10 Years)
 
Pre & Post-Filter Cartridges: ~$148 Per Year (Save 15% with Filter Subscription)
~$340-475 Per Year
Product Warranty Tank + Interceptor Housing: Lifetime
 
Smart Valve + Electronics: 10 Years
 
Carbon: 5 Years
 
1-Year Satisfaction Guarantee If You’re on Tap Water
Lifetime (Tank + Head)
 
Carbon Performance Guarantee for Chlorine/Chloramine Reduction to Below Minimum Detection Levels for 6 Years or 1,000,000 Gal
 
6-Month Satisfaction Guarantee (25% Restocking Fee)
1-Year, 2 Years Upon Product Registration Lifetime
 
120-Day Satisfaction Guarantee
Tank + Head: Lifetime
 
Bone Char: 3 Years
 
1-Year Satisfaction Guarantee If You’re on Tap Water
1-Year 1-Year Dual Tank: 10-Year
 
Install Kit + Pre/Post-Filter Housings: 1 Year
 
90-Day Satisfaction Guarantee
1-Year Upon Product Registration
Claimed to Be Made in Italy (Filter Housings Only)
(More) Features/Pros -Chrome Cover Protects Tank Against UV Damage
-Distributors in Tank Prolong Water Contact Time for More Effective Filtration
-Backup Battery Prevents Issues During Power Failures
-Pre-Filter Cartridges Use 2 O-Rings to Prevent Bypassing
-Pre-Filter Cartridges Are American-Made
-Pre-Filter Cartridges Are Washable
-Optional Tank Jacket Fits Well, Protects Tank Against UV Damage, and Gives Unit a Nice Appearance Overall
-Standard-Sized Post-Filter Cartridges Allow You to Go Off-Brand
-Military and First Responder Discounts
-Drain Valve Integrated into Each Filter Housing Allows for Sediment Flushing without Disassembling
-20-Inch Standard Sized Filter Cartridges Allow You to Go Off-Brand With Replacements
-Sediment Filter Cartridges Are Washable
-20-Inch Standard Sized Filter Cartridges Allow You to Go Off-Brand With Replacements
-System Feels Solid and Well-Built, but We Couldn’t Spot an Immediate Difference in Build Quality Compared to Express Water or Waterdrop – Despite the Housings Being Made in Italy
-Chrome Cover Protects Tank Against UV Damage
-Distributors in Tank Prolong Water Contact Time for More Effective Filtration
-20-Inch Standard Sized Filter Cartridges Allow You to Go Off-Brand With Replacements -Metal Tag on System Module Mentions Filter Lifetimes, Model Number, Water Temp & Pressure, Serial Number, and Company Contact Info
-20-Inch Standard Sized Filter Cartridges Allow You to Go Off-Brand With Replacements
-Comes With Assembly Kit Including Integrated Drain Valve + Shut-Off Valve
-Handling Instructions, Size, and Operating Specifications Clearly Displayed on the Unit for Convenient Long-Term Reference
-Standard Sized Filter Cartridges Allow You to Go Off-Brand With Replacements
-20-Inch Standard Sized Filter Cartridges Allow You to Go Off-Brand With Replacements
(More) Cons -Although Pre-Filter Cartridges Are Standard-Sized You Can’t Replace With Other Brands Due to Double O-Ring Housing -Parts of the Springwell Website and Instruction Booklet Show Old Metal Bracket for Sediment Post-Filter Which Has Been Replaced by Plastic Bracket -Micron Rating of Pre and Post-Filter Cartridges Unclear (No Ratings Shown on Unit or Cartridges and None Listed in Product Description; Conflicting Ratings Found in the FAQ Section) -Label with Product Specifications Has Been Removed From Our Unit’s Mounting Bracket
Frequent Complaints From Third-Party Customer Reviews -Note: Not That Many Customer Reviews Yet -Some Chlorine Taste/Odor Remaining in Filtered Water
-Lackluster After-Sales Support
-Note: Not That Many Customer Reviews Yet -Note: Negative Reviews Were Hard to Find (Customer Feedback on Kind’s Own Website Is Nothing but Positive)
-We Found These Complaints for the E-3000: Taste/Odor Issues, No Improvement in Water Quality, Cloudiness/Discoloration
-Note: Not That Many Customer Reviews Yet -Leaking
-Lackluster Filtration
-Poor Customer Service
-Note: Not That Many Customer Reviews Yet -Many Amazon Reviews Appear to Be for a Different Product (Aquasana Replacement Cartridges)
-Major Flow Drops With Normal Use
-Leaks & Breakage (Cracked Tanks, Failed Plastic Parts)
-Poor Support & Warranty
-Missing, Wrong, or Defective Components
-Note: Not That Many Customer Reviews Yet
-For iSpring Whole House Filters in General: Leaking, Bad Customer Service, Installation Difficulties, Damaged, Missing, or Wrong Parts on Arrival

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Whole House Water Filter USWS Bodyguard Plus
(Incl. Interceptor Pre-Filter)
SpringWell CF Purcooflow WHF2045B303 Kind E-1000 USWS Bodyguard Fluoride Removal Filter Express Water 3-Stage Essential (WH-300RS-CGS) Waterdrop WHF3T-PG Aquasana Rhino WH-1000 & Rhino Max Flow WH-1010 iSpring WGB32B-KSNC
Purchase Links & Codes
uswatersystems.com springwellwater.com purcooflow.com kindwater.com uswatersystems.com expresswater.com (Deluxe Version Only) waterdropfilter.com Regular Size (Up to 2.5 Baths): aquasana.com ispringfilter.com
OR OR OR OR
Amazon Amazon Max Flow (Up to 6 Baths): aquasana.com Amazon
BESTRO-5 – 5% Off! BOS5OFF – 5% Off! BOSWATER – $140 Off! KIND50 – $50 Off! BESTRO-5 – 5% Off! WH3TBOS – 5% Off on Top of Most Waterdrop Sales! (waterdropfilter.com Only) AQBOS50 – Up to 50% Off!
Image USWS Bodyguard Plus SpringWell CF1 Purcooflow WHF2045B303 Kind E-1000 USWS Bodyguard Fluoride Removal Filter Express Water 3-Stage Essential Waterdrop WHF3T-PG Aquasana Rhino WH-1000 iSpring WGB32B-KSNC
Type Media Tank Media Tank Cartridge-Based Cartridge-Based Media Tank Cartridge-Based Cartridge-Based Media Tank Cartridge-Based
Lab Reports (Please ignore results for bacteria as we didn’t sample in a sterile environment.) Filtered Water Report Filtered Water Report Filtered Water Report Filtered Water Report Report After Filtration Filtered Water Report Filtered Water Report Filtered Water Report Filtered Water Report
Unfiltered Water Report Unfiltered Water Report Unfiltered Water Report Unfiltered Water Report Report Before Filtration Unfiltered Water Report Unfiltered Water Report Unfiltered Water Report Unfiltered Water Report
Reduction Rates for Undesirable Impurities & Contaminants
Potentially Harmful Aesthetic Issues
Water Disinfectants
Chlorine 100% 100% 100% 100% Not Present 100% 100% 100% 100%
Disinfection Byproducts
Bromochloromethane 100% Not Present Not Present Not Present Not Present Not Present Not Present Not Present Not Present
Bromodichloromethane 100% 100% 100% 100% Not Present 100% 100% 100% 100%
Bromoform Not Present Not Present 100% 100% Not Present Not Present 100% Not Present Not Present
Dibromochloromethane 100% 100% 100% 100% Not Present 100% 100% 100% 100%
Chloroform 99% 100% 100% 100% 100% (Irrelevant!) 100% 99% 100% 100%
Industrial Solvents
Methylene Chloride 100% (Flawed?) Not Present Not Present Not Present Added (See Below, Flawed?) Not Present Not Present Not Present Not Present
o-Xylene Not Present Not Present Not Present 100% Not Present Not Present Not Present Not Present Not Present
m+p Xylenes Not Present Not Present Not Present 100% Not Present Not Present Not Present Not Present Not Present
Metals
Copper 100% Not Present Not Present 100% Not Present 0% Not Present Added (See Below) Not Present
Iron Not Present 100% Not Present 80% Not Present Not Present Not Present Not Present Not Present
Manganese Not Present 100% Added (See Below) Not Present Not Present Not Present Added (See Below) Not Present Not Present
Aluminum 26% Added (See Below, Flawed?) 25% 29% 100% 0% 69% 50% 80%
Barium 0% 78% 0% 0% 50% 0% 0% 0% 50%
Boron 50% 0% 50% 50% 0% 0% 50% Increase 50% 50%
Zinc Not Present Not Present 0% 33% Not Present Not Present 1,500% Increase 900% Increase 100%
Lithium Not Present 100% Not Present Not Present Not Present Not Present Not Present Not Present Not Present
Strontium 0% 72% 7% Increase 0% 69% 0% 7% Increase 0% 7%
Salts
Nitrate (N) Not Present Not Present 0% 0% Not Present Not Present Added (See Below, Flawed?) Not Present Not Present
Fluoride 6% 6% 35% Increase 16% Reduction Anywhere Between 84% and 99% 10% Increase 18% Increase 7% Increase 33% Increase
Other
Uranium Not Present 100% Not Present Not Present Not Present Not Present Not Present Not Present Not Present
Impurities NOT Detected in “Before” Water Sample
Methylene Chloride (µg/L) (Flawed?) 2.17Our best guess is that the methylene chloride was added by some of the newly-installed plumbing components such as the sampling taps.
Aluminum (mg/L) (Flawed?) 0.03We’re confident the aluminum increase is due to natural fluctuations and not an issue with leaching, as we’ve found significant amounts of aluminum in our water supply before.
Nitrate (mg/L) (Flawed?) <0.5We’re confident the nitrate increase is due to natural fluctuations and not an issue with leaching, as we’ve found significant amounts of nitrate in our water supply before.
Manganese (mg/L) 0.01 0.01
Copper (mg/L) 0.01
Chloromethane (µg/L) 0.6
Molybdenum (mg/L) 0.01
Explanation:
Full Removal
Considerable Reduction
Concentration More than Double of Unfiltered Water Sample
Potential Leaching Reached or Exceeded the Strictest Public Health Guideline We Could Find
Raw Data
Water Disinfectants
(Before | After)
Chlorine (mg/L) 0.57 | 0 0.5 | 0 0.48 | 0 0.54 | 0 0 | 0 <0.1 | 0 0.9 | 0 0.86 | 0 0.71 | 0
Disinfection Byproducts
(Before | After)
Bromochloromethane (µg/L) 0.76 | 0 0 | 0 0 | 0 0 | 0 0 | 0 0 | 0 0 | 0 0 | 0 0 | 0
Bromodichloromethane (µg/L) 11.93 | 0 10.48 | 0 13.11 | 0 23.57 | 0 0 | 0 26.38 | 0 16.96 | 0 15.75 | 0 6.62 | 0
Bromoform (µg/L) 0 | 0 0 | 0 0.54 | 0 0.57 | 0 0 | 0 0 | 0 0.5 | 0 0 | 0 0 | 0
Dibromochloromethane (µg/L) 3.78 | 0 3.79 | 0 4.69 | 0 7.45 | 0 0 | 0 7.82 | 0 6.17 | 0 5.84 | 0 2.34 | 0
Chloroform (µg/L) 65.26 | 0.5 28.19 | 0 39.77 | 0 100.61 | 0 0.5 | 0 113.43 | 0 64.42 | 0.91 48.56 | 0 12.49 | 0
Industrial Solvents
(Before | After)
Methylene Chloride (µg/L) 0.62 | 0 0 | 0 0 | 0 0 | 0 0 | 2.17 0 | 0 0 | 0 0 | 0 0 | 0
o-Xylene (µg/L) 0 | 0 0 | 0 0 | 0 0.56 | 0 0 | 0 0 | 0 0 | 0 0 | 0 0 | 0
m+p Xylenes (µg/L) 0 | 0 0 | 0 0 | 0 0.89 | 0 0 | 0 0 | 0 0 | 0 0 | 0 0 | 0
Metals
(Before | After)
Copper (mg/L) 0.01 | 0 0 | 0 0 | 0 0.01 | 0 0 | 0 0.01 | 0.01 0 | 0 0 | 0.01 0 | 0
Iron (mg/L) 0 | 0 0.03 | 0 0 | 0 0.05 | 0.01 0 | 0 0 | 0 0 | 0 0 | 0 0 | 0
Manganese (mg/L) 0 | 0 0.02 | 0 0 | 0.01 0 | 0 0 | 0 0 | 0 0 | 0.01 0 | 0 0 | 0
Aluminum (mg/L) 0.23 | 0.17 0 | 0.03 0.12 | 0.09 0.28 | 0.2 0.17 | 0 0.1 | 0.1 0.16 | 0.05 0.04 | 0.02 0.05 | 0.01
Barium (mg/L) 0.02 | 0.02 0.09 | 0.02 0.02 | 0.02 0.02 | 0.02 0.02 | 0.01 0.02 | 0.02 0.02 | 0.02 0.02 | 0.02 0.02 | 0.01
Boron (mg/L) 0.02 | 0.01 0.01 | 0.01 0.02 | 0.01 0.02 | 0.01 0.01 | 0.01 0.01 | 0.01 0.02 | 0.03 0.02 | 0.01 0.02 | 0.01
Zinc (mg/L) 0 | 0 0 | 0 0.01 | 0.01 0.06 | 0.04 0 | 0 0 | 0 0.01 | 0.16 0.01 | 0.1 0.01 | 0
Lithium (mg/L) 0 | 0 0.01 | 0 0 | 0 0 | 0 0 | 0 0 | 0 0 | 0 0 | 0 0 | 0
Strontium (mg/L) 0.13 | 0.13 0.47 | 0.13 0.14 | 0.15 0.17 | 0.17 0.13 | 0.04 0.12 | 0.12 0.14 | 0.15 0.15 | 0.15 0.14 | 0.13
Salts
(Before | After)
Nitrate (N) (mg/L) 0 | 0 0 | 0 <0.5 | <0.5 <0.5 | <0.5 0 | 0 0 | 0 0 | <0.5 0 | 0 0 | 0
Fluoride (mg/L) 0.67 | 0.63 0.67 | 0.63 0.52 | 0.7 0.57 | 0.48 0.63 | <0.1 0.4 | 0.44 0.78 | 0.92 0.58 | 0.62 0.39 | 0.52
Other
(Unfiltered | Filtered)
Uranium (µg/L) 0 | 0 1 | 0 0 | 0 0 | 0 0 | 0 0 | 0 0 | 0 0 | 0 0 | 0
Water Parameters
(Before | After)
Alkalinity (mg/L) 100 | 107.5 95.0 | 112.5 92.5 | 125 102.5 | 102.5 107.5 | 105 92.5 | 100 120 | 180 110 | 110 90 | 120
pH 8.02 | 8.12 7.66 | 9.73The pH increase should subside after a few weeks. 7.98 | 8.14 7.99 | 8.59 8.12 | 9.95The pH increase should subside after a few weeks. 7.88 | 8.23 7.97 | 9.31The pH increase should subside after a few weeks. 7.87 | 9.38 7.76 | 9.23
Turbidity (N.T.U.) 0.66 | <0.2 <0.2 | 0.31 0.4 | 0.22 <0.2 | 0.2 <0.2 | 0.31 <0.2 | <0.2 0.63 | 1.6 <0.2 | 0.53 0.3 | <0.2
Hardness (mg/L) 104.3 | 98.3 116.6 | 103.4 104.1 | 111.7 125.4 | 126.9 98.3 | 99.9 86.3 | 94 113.9 | 113.1 114.9 | 113.5 110.6 | 97.2

Whole House Water Filters

Please note: This page is still a work in progress. Additional content and details will be added shortly – stay tuned!

Whole House Water Filter Videos

Aquasana Rhino vs. SpringWell CF Whole House Water Filter

  • 00:00 – Intro
  • 00:45 – Flow Rate & Filter Stages
  • 03:50 – Lab Testing
  • 06:48 – Taste & Odor + NSF Testing
  • 07:35 – Installation
  • 11:17 – Daily Use & Filter Replacements
  • 12:55 – Cost
  • 16:09 – Pros & Cons

We Tested the Best Whole House Water Filter… AGAIN! (SpringWell CF Review)

  • 00:00 – Intro
  • 00:22 – General Information
  • 02:51 – System Sizes & Filtration Process
  • 05:12 – Upflow Design
  • 06:21 – Sediment Post-Filter
  • 07:13 – Lab Testing
  • 08:05 – Lab Results
  • 09:30 – SpringWell vs USWS
  • 10:20 – Installation Process
  • 13:25 – Everyday Use & Maintenance
  • 14:08 – Customer Feedback
  • 14:25 – Costs
  • 15:39 – Summary

We Tested the #1 Whole House Water Filter on Amazon… | iSpring WGB32B Review

  • 00:00 – Intro
  • 00:39 – General Info
  • 01:46 – Flow Rate & Filter Stages
  • 04:08 – Lab Testing
  • 07:15 – Installation
  • 08:57 – Daily Use & Filter Replacements
  • 09:39 – Additional Notes
  • 10:03 – Cost
  • 13:35 – Outro

This Whole House Water Filter Deal Looks Too Good…

  • 00:00 – Intro
  • 00:39 – General Info
  • 02:10 – Flow Rate & Filter Stages
  • 04:06 – 3rd-Party PFAS Testing
  • 05:06 – Lab Testing
  • 07:02 – Installation
  • 08:53 – Daily Use & Filter Replacements (Drain Valves)
  • 10:34 – Cost
  • 12:27 – Outro

This Whole House Water Filter Has Issues (Aquasana Rhino Review)

  • 00:00 – Intro
  • 00:33 – General Info
  • 02:23 – System Sizes & Filtration Process
  • 04:34 – Lab Testing
  • 07:02 – Installation
  • 09:35 – Daily Use & Filter Replacements
  • 10:26 – Amazon Rating
  • 11:55 – Cost
  • 13:49 – Final Rating
  • 14:05 – Summary
  • 15:50 – Outro

Cheap Whole House Filter?! | Express Water Lab Test & Review

  • 00:00 – Intro
  • 00:28 – General Info
  • 01:46 – System Features
  • 02:25 – Filtration Process
  • 03:56 – Lab Results
  • 05:13 – Installation Process
  • 06:48 – Everyday Use & Maintenance
  • 07:05 – Customer Feedback
  • 07:18 – Costs
  • 08:19 – Summary
  • 09:09 – Outro

This Whole House Filter Made Our Tap Water Taste Like Spring! (USWS Combo Lab Test & Review)

  • 00:00 – Intro
  • 00:29 – General Information
  • 02:12 – Bodyguard Plus – Features & Specs
  • 04:22 – Bodyguard Fluoride Filter – Features & Specs
  • 06:03 – Sizes
  • 06:17 – Smart Valve
  • 08:49 – Lab Testing
  • 12:47 – What the Combo Won’t Do
  • 13:32 – Installation
  • 16:55 – Usability & Maintenance
  • 17:39 – Additional Pros
  • 18:26 – Additional Cons
  • 18:41 – Cost, Warranties, Satisfaction Guarantee
  • 20:36 – Summary
  • 21:14 – Outro

Cheapest Whole House Water Filter Ever!! | Waterdrop WHF3T-PG Review

  • 00:00 – Intro
  • 00:29 – General Info
  • 01:32 – System Features
  • 02:14 – Filtration Process
  • 03:19 – Lab Testing
  • 05:35 – Installation Process
  • 07:41 – Daily Use & Filter Replacements
  • 08:41 – Costs
  • 09:39 – Final Rating
  • 09:56 – Summary
  • 11:24 – Outro

Best Cartridge-Based Whole House Water Filter? (Kind E-1000 Re-Test)

  • 00:00 – Intro
  • 00:31 – General Info
  • 01:26 – System Features
  • 02:03 – Filtration Process
  • 03:39 – Lab Results
  • 04:39 – Installation Process
  • 06:12 – Day-to-Day Use
  • 06:31 – Filter Replacements
  • 06:50 – Customer Feedback
  • 07:19 – Costs
  • 08:05 – Final Rating
  • 08:19 – Summary
  • 09:29 – Outro

Why Trust Us?

You might be wondering, “Why should I trust these recommendations?” Fair question! Here’s the scoop:

We actually get our hands dirty. Every single whole house water filter in this guide (9 and counting!) has been tested by us in the real world – and yes, that includes lab work. To ensure comparable results, we adhere to standardized testing and rating procedures. As such, we’ve run every system on the same tap water in Buffalo, New York – and it’s always the same person, Adam, doing the testing. What’s more, with years of experience and a ton of research under our belts, we’ve honed our methods again and again to achieve the most accurate results possible. Plus, we know how to differentiate between crucial product criteria such as NSF/ANSI certifications and unnecessary bells and whistles.

Last but not least, we’re 100% open about the fact that we participate in various affiliate programs run by the water treatment companies themselves or large marketplaces like amazon.com. This helps us purchase the products/services we test, fund our expensive lab testing, and pay for video production cost while keeping our content free. That said, our ratings aren’t tied to who pays the highest commission. We follow strict, standardized protocols, never accept payments for positive write-ups, and all opinions are 100% ours. We even publish our complete lab reports so you can dig in and draw your own conclusions.

About the Author(s)

Sara

Sara has been a lifelong home-improvement fan (she’s been hooked on This Old House since she was five) and taught herself any project she didn’t already know by watching YouTube tutorials. She is also an award-winning filmmaker. Armed with this skillset, Sara installs, primes, samples, uses, and maintains nearly every point-of-use water treatment system we test – then brings her results to life on camera for our YouTube channel.

Adam

Adam has always loved testing and reviewing the latest products. He began his BOS Water journey doing simple pitchers and has since expanded his expertise to installing and evaluating advanced point-of-entry systems. Cultivating a small business in the filmmaking industry, Adam is also in front of the camera sharing his findings on the BOS Water YouTube channel.

Raoul

Raoul has a background in mechanical engineering and has been writing about home water treatment since 2015. He designs our product review processes, analyzes the results, and ties everything together. As editor-in-chief, he tries hard to keep the whole operation running smoothly behind the scenes.

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6 thoughts on “Best Whole House Water Filters 2026: Lab & Hands-On Testing”

  1. I need a simple effective system for my well water system. Hopefully a 2 stage cartridge that doesn’t cast $400. We have the rotten egg smell from cold and hot and some fine black sediment.

    1. Hi Mike,
      The only 2-stage system we’ve tested so far is the Kind E-1000, which is above your $400 budget, so unless you’re open to a 3-stage setup, I can’t recommend a specific 2-stage model yet.
      On the rotten egg smell: since it’s present in both hot and cold water, that points to hydrogen sulfide in the well itself rather than just your water heater. The right treatment really depends on concentration – simple catalytic carbon filter can work for low levels.
      The fine black sediment is the bigger factor here, though. If that turns out to be iron or manganese, an iron filter could treat both issues at once.
      Do you have a recent water test for iron, manganese, and H₂S levels? If not, I think that’s the best next step. It’ll tell us exactly what you’re dealing with.

  2. Good Morning,
    Were you ever able to review the Clean Water Store 7500 Rev4 System. I am comparing this to the Bodyguard Plus. I understand the price is much different, buy why and what is so different.?

    Regards

    1. Good Morning!
      The only system called “7500 Rev4” that I could find was a water softener, but I’m assuming that’s not the one you meant. Could you please provide the exact model name/number?
      That said, we haven’t reviewed any Clean Water Store products yet.
      Best,
      Raoul

    1. Hi Ed,
      What’s your goal with the treatment? If you want to actually remove hardness, a salt-based softener is what you want. Salt-free (TAC) is the alternative, but it doesn’t remove hardness minerals — it just keeps them from scaling your pipes and appliances.
      Happy to dig in more if that didn’t cover it!
      Best,
      Raoul

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