Under sink water filters provide clean water for drinking and cooking. Installed directly beneath the sink and out of sight, they are convenient for daily use and offer strong protection against harmful contaminants while improving water aesthetics.
Big Comparisons
our big under sink water filter comparisons
Videos
some of our under sink filter YouTube videos (→ visit our channel)
Best Under Sink Water Filter in 2025? 19 Systems (Lab-)Tested!
- Link to Comparison Sheet
- 00:00 – Intro
- 00:34 – How We Tested & Rated
- 01:53 – Our Recommendations
- 03:01 – Best Overall (Cloud RO)
- 15:11 – 2 Best Tankless ROs (Waterdrop G3P600 & X12)
- 27:26 – Best Non-RO Filter (Epic Smart Shield)
- 31:22 – Highest Filtration Score (Aquasana SmartFlow)
- 32:02 – Made in USA (USWS All American & Home Master TMHP-L)
- 32:34 – Budget RO Pick (APEC ROES-50 Essence)
- 32:51 – AO Smith AO-US-200 & Culligan US-EZ-4
- 33:34 – 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
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
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
#1 Under Sink Filter on a BUDGET?! | Epic Smart Shield Lab Test & Review
- 00:00 – Intro
- 00:36 – General Information
- 01:52 – Lab Testing
- 03:32 – Taste & Odor
- 03:36 – NSF Certifications & Test Data
- 04:03 – Setup & Everyday Use
- 04:48 – #1 User Complaint
- 05:42 – Filter Replacement
- 06:10 – Costs
- 06:55 – More Pros
- 07:04 – Summary
- 07:27 – Outro
Dedicated Reviews
our dedicated under sink water filter reviews
Know How
our under sink water filter know how articles
