Updated: September 2025

Countertop Reverse Osmosis Water Filters

Countertop Reverse Osmosis Water Filters

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Written by David Welch

Audited by Eliana Hayes

Written by David Welch

Audited by Eliana Hayes

Written by David Welch

Audited by Eliana Hayes

100+ Products Analyzed

50k Reviews Evaluated

30 Day Returns

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100+ Products Analyzed

50k Reviews Evaluated

30 Day Returns

Trending

Reverse Osmosis System Countertop Water Filter, 4 Stage Purification, Counter RO Filtration, 2:1 Pure to Drain, Purified Tap Water... read more

Best Overall Pick

Bluevua RO100ROPOT Reverse Osmosis System Countertop Water Filter, 4 Stage Purification, Counter RO Filtration, 2:1 Pure to Drain, Purified Tap Water, Portable Water Purifier for Home

Countertop Reverse Osmosis System, Hot and Cold RO System, 6 Temperature Settings, Portable Pure Water Tank, Bottleless Water... read more

Waterdrop WD-A2 Countertop Reverse Osmosis System, 𝐇𝐨𝐭 𝐚𝐧𝐝 𝐂𝐨𝐥𝐝 RO System, Portable Pure Water Tank, Bottleless Water Cooler, 6 Temperature Settings, Hot Cold Room Water, 3:1 Pure to Drain

Reverse Osmosis Water Filter Countertop, 6-Stage RO Water Filtration System with Aquaporin Inside and 2 Portable Pitchers, NSF/ANSI... read more

Philips Reverse Osmosis Water Filter Countertop, 6-Stage RO Water Filtration System with Aquaporin Inside and 2 Portable Pitchers, NSF/ANSI 372 Certified, Reduce TDS Lead (NO HOT or Cold Water)

M1 Reverse Osmosis Countertop Water Purifier, Professional Grade 5-Stage RO Filtration, Purified Tap Water, 3-second Hot or Cool... read more

MELISSANI M1 Reverse Osmosis Countertop Water Purifier, Professional Grade 5-Stage RO Filtration, Purified Tap Water, 3-second Hot or Cool, Portable Water Purification System for Home- No Installation

K19H Countertop Reverse Osmosis System, Instant Hot Water Dispenser, Reverse Osmosis Water Filter Countertop, 3:1 Pure to... read more

【Instant Hot】 Waterdrop K19-H Countertop Reverse Osmosis System, Reverse Osmosis Water Filter Countertop, 3:1 Pure to Drain, 4 Temperature Options Water Dispenser, No Installation

Some other products we considered

AquaTru Classic Smart Countertop Water Filtration Purification System for PFAS & Other Contaminants with Exclusive Ultra Reverse Osmosis Technology (No Installation Required) | BPA Free

Connect Countertop Water Filtration Purification System for PFAS & Other Contaminants with...

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Waterdrop X16-Alkaline Tankless Reverse Osmosis System, NSF/ANSI 42&58&372 Certified, 1600 GPD RO Filter System, 11-Stage Filtration, UnderSink, 3:1 Pure to Drain, Alkaline Mineral pH+, BPA Free

X16 Tankless Reverse Osmosis System, NSF/ANSI 58&372 Certified, 1600 GPD RO Water Filter...

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Waterdrop K19-S Countertop Reverse Osmosis System, 4 Stage Reverse Osmosis Water Filter Countertop, 3:1 Pure to Drain, Reduce PFAS, No Installation Required, BPA Free

K19-S Countertop Reverse Osmosis System, 4 Stage Reverse Osmosis Water Filter Countertop, 3:1...

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About the Author

David Welch is a mechanical engineer with a passion for reviewing tech. On his free time, he enjoys spending time outdoors with his wife, three children, and german shepherd named Zeus.