Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. By purchasing the products we rank, you’ll get the lowest price we found while we may receive a commission at no cost to you, which will help us continue to provide you with value.
Advertising Disclosure
10 Best countertop reverse osmosis systems of 2025
Save up to 37% off
Best Choice1
Clicked 1,550 times in the last weekBluevuaBluevua RO100ROPOT-UV Reverse Osmosis System Countertop Water Filter - 6 Stage Purification with UV and Remineralization, Counter RO Filtration, Portable Water Purifier
Key specs-
Filtration Stages:4-stage filtration
-
Installation Type:Countertop, no plumbing
-
Maintenance Frequency:12-24 months
-
Dimensions:14.3 x 10.9 x 15.4 inches
-
Contaminants Removed:99.9% of contaminants
9.8Exceptional
-
-
Powerful technology We scan thousands of products and stores, analyzing reviews to find what matters most to users like you
Careful review Our team ensures quality, value, and fit based on real user feedback
Trusted insights AI and human analysis guide your decisions, reflecting real user prioritiesReal users impact
Thousands of users trust our site daily
- Based on millions of stores and reviews
- Shoppers influence our rankings
Analyzing top stores
Value for Money2
NOVETENOVETE Reverse Osmosis Water Filter Countertop, UV Cold Water Down to 32℉, NSF/ANSI 42/58 Certified, 4:1 Pure to Drain, No Installation Needed, 8-Stage RO Water Filtration System, CRF0A-QS, White
9.6Exceptional
-
3
PHILIPSPHILIPS Reverse Osmosis Water Filter Countertop, Compact 5 Stage RO Water Filtration System Purifier Dispenser with Aquaporin Technology, NSF/ANSI 372 Certified, Reduce TDS
22% Off9.5Excellent
-
4
TowallmarkCountertop Reverse Osmosis Water Filter System 100GPD, 5-Stage Filtration, NSF/ANSI 58 Certified, 4:1 Pure to Drain, Real-Time TDS Display, 4L Raw Tank & 1.5L Pure Water Tank
9.4Excellent
-
5
BluevuaBluevua RO100ROPOT-Lite(UV) Countertop Reverse Osmosis Water Filter System, 7-Stage Purification with UV and Remineralization, 3:1 Pure to Drain, Portable Water Purifier (Blue)
Key specs-
Filtration Stages:7-stage RO system
-
Installation Type:Countertop, no plumbing
-
Maintenance Frequency:Once a year
-
Dimensions:9.7 x 9.5 x 14.1 inches
-
Contaminants Removed:Lead-free, UV light
9.1Excellent
-
-
See Today’s Deals & Prices
6
SimPureSimPure Y7P-BW UV Countertop Reverse Osmosis Water Filter, NSF/ANSI 58 Certified, 5 Stage RO Water Filtration System, Water Purifier for Home, 4: 1 Pure to Drain, BPA Free (No Installation Required)
29% OffKey specs-
Filtration Stages:3-Stages RO
-
Installation Type:Countertop
-
Maintenance Frequency:Quick-change cartridges
-
Dimensions:18D x 8W x 17H
-
Contaminants Removed:Viruses, bacteria, heavy metals
9.0Excellent
Our Rating
-
7
AigerriUV Reverse Osmosis Water Filter Countertop, 5-Stage RO Water Filtration System, 5:1 Pure to Drain, No Installation Required, Portable Water Purifier for Home Kitchen
37% Off8.9Very Good
-
8
KOVIETKOVIET Countertop Reverse Osmosis Water Filter, 4:1 Pure to Drain, 8 Stage RO Filtration System, Portable Water Purifier, No Installation Required, Silver Gray
8.6Very Good
-
9
DreoDreo Reverse Osmosis Water Filter Countertop, 7-Stage RO Water Filtration System, Installation-Free, Reduce TDS, Water Filter Pitcher for Home, Kitchen, 3:1 Pure to Drain, WF511 Upgraded
25% Off8.3Good
-
10
SimPureSimPure Y9A UV Countertop Reverse Osmosis Water Filter, Alkaline Remineralization 300 GPD 6 Stage Purification, RO Water Filtration System, Super Fast Filtering Portable Water Purifier
20% Off8.2Good
-
