Reverse Osmosis Systems

Reverse osmosis systems are the most effective type of home water filter, providing the purest water for drinking and cooking. Available as under sink or countertop units, they remove the widest range of impurities.

Big Comparisons

our big reverse osmosis system comparisons

Videos

some of our RO system YouTube videos (→ visit our channel)

The Best Reverse Osmosis Systems of 2025 (We Tested 25 Popular Models!)

  • Link to Comparison Sheet
  • 00:00 – Intro
  • 00:39 – The 25 RO Systems
  • 03:43 – Our 3 Top Picks
  • 04:33 – Top 3: Lab Results
  • 07:57 – Top 3: NSF Certifications
  • 10:37 – Top 3: Taste & Odor
  • 11:34 – Top 3: Installation
  • 12:50 – Top 3: Day-to-Day Use
  • 16:02 – Top 3: Replacing Filters
  • 16:55 – Top 3: Wastewater
  • 18:38 – Top 3: Extra Notes
  • 20:06 – Top 3: Cost
  • 21:30 – Crowning the #1 RO
  • 22:15 – AquaTru Carafe
  • 22:59 – Bluevua Lite & Waterdrop A1
  • 24:22 – Waterdrop G3P800 & X12
  • 25:51 – Aquasana SmartFlow
  • 26:40 – USWS All American & Home Master TMHP-L
  • 28:10 – APEC ROES-50 Essence
  • 28:56 – Summary

Best Under Sink Reverse Osmosis System in 2025? 11 Filters (Lab-)Tested! [v2.0]

  • Link to Comparison Sheet
  • 00:00 – Intro
  • 00:22 – What’s New?
  • 01:11 – Our 11 Under Sink ROs
  • 01:54 – How We Tested & Rated
  • 05:08 – Our Recommendations
  • 06:11 – Best Overall (Cloud RO)
  • 20:57 – 2 Best Tankless Units (Waterdrop G3P600 & X12)
  • 35:38 – Highest Filtration Score (Aquasana SmartFlow)
  • 37:22 – Made in USA (USWS All American & Home Master TMHP-L)
  • 41:28 – Budget Pick (APEC ROES-50 Essence)
  • 42:50 – Summary

Best Countertop Reverse Osmosis System in 2025? 10 Filters (Lab-)Tested!

  • Link to Comparison Sheet
  • 00:00 – Intro
  • 00:27 – Our 10 Countertop ROs
  • 01:15 – How We Tested & Rated
  • 04:23 – System Setup & Filter Priming
  • 04:38 – Sampling Process
  • 05:41 – Lab Testing Disclaimer
  • 06:07 – Taste & Odor Test
  • 06:28 – Speed Test
  • 07:05 – Pure-to-Drain Ratio Test
  • 07:31 – Best Overall (AquaTru Classic)
  • 10:49 – Best Budget Pick (AquaTru Carafe)
  • 12:30 – Best for Hot Water (NU Aqua & APEC)
  • 15:30 – Honorable Mention (Bluevua)
  • 16:00 – Summary

This Under Sink RO System BEATS Them ALL! (Cloud RO Lab Test & Review)

  • 00:00 – Intro
  • 00:27 – General Information
  • 02:01 – Lab Testing
  • 03:03 – Lab Results (Filtration)
  • 04:34 – Lab Results (Remineralization)
  • 05:40 – NSF Certifications & Test Data
  • 06:11 – Taste & Odor
  • 06:15 – Usability
  • 08:22 – Cloud RO App
  • 11:13 – Wastewater Test
  • 12:10 – More Pros
  • 12:23 – Costs
  • 12:59 – Summary
  • 13:49 – Outro

Is This the KING of Tankless RO Systems?! (Waterdrop G3P600 Lab Test & Review)

  • 00:00 – Intro
  • 00:24 – General Information
  • 00:41 – How We Tested
  • 01:48 – Lab Results
  • 04:19 – NSF Certifications & Testing
  • 04:57 – Filter Process
  • 05:13 – Taste & Odor Test
  • 05:19 – Wastewater Test
  • 05:44 – Dispensing Speed Test
  • 06:46 – Usability
  • 07:07 – Installation & Filter Priming
  • 08:19 – More Features & Pros
  • 08:54 – Cost
  • 09:52 – More Cons
  • 10:07 – Summary
  • 10:27 – Outro

Does It Still Leach CANCER Chemicals?! | FINAL Waterdrop A1 Lab Test & Review

  • 00:00 – Intro
  • 00:35 – What Happened So Far
  • 02:27 – The New Waterdrop A1
  • 02:59 – Does It Still Leach?
  • 03:28 – Contaminant Reduction
  • 04:22 – Updated Google Sheet
  • 04:47 – NSF Standards
  • 05:17 – Taste & Odor
  • 05:22 – Filter Process
  • 06:05 – Usability
  • 10:09 – Wastewater
  • 10:23 – User Complaints
  • 10:52 – Costs
  • 11:24 – Summary
  • 12:30 – Outro

Fastest. RO. Ever. (But There’s a Catch!) | Waterdrop X12 Lab Test & Review

  • 00:00 – Intro
  • 00:29 – General Information
  • 00:56 – How We Tested
  • 02:05 – Lab Results
  • 04:53 – NSF Certification & Testing
  • 05:23 – Taste & Odor Test
  • 05:34 – Filtration Process
  • 06:08 – Installation & Filter Priming
  • 07:25 – Everyday Use
  • 07:57 – Faucet & Energy Saving Mode
  • 09:02 – Speed Test
  • 09:29 – More Features & Pros
  • 09:57 – Wastewater & Auto-Flushing
  • 14:23 – Cost
  • 15:09 – Summary
  • 15:49 – Outro

AquaTru Reverse Osmosis Water Filter Review Part 2: 🧪 LAB TEST (Perfect Results!)

  • 00:00 – Intro
  • 00:26 – Our #1
  • 01:06 – Discounts
  • 01:29 – Cost
  • 01:45 – Features
  • 03:06 – Setup
  • 04:59 – How to Use
  • 05:59 – More Features
  • 06:35 – Cons
  • 07:46 – Lab Test
  • 12:45 – Taste Test
  • 13:33 – Summary

The Budget RO Hack That Beats $500 Systems?! (AquaTru Carafe Lab Test + Review)

  • 00:00 – Intro
  • 00:21 – General Information
  • 02:00 – Lab Testing
  • 02:40 – Lab Results
  • 04:15 – NSF Certifications
  • 05:07 – Taste & Odor Test
  • 05:13 – Filter Process
  • 05:21 – Usability
  • 06:22 – Wastewater Test
  • 06:43 – Filter Replacements
  • 07:35 – More Cons
  • 07:47 – Price
  • 08:02 – Summary
  • 08:23 – Outro

Dedicated Reviews

our dedicated reverse osmosis system reviews

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