Our Top Picks
Best Overall: APEC Ultimate 6-Stage Reverse Osmosis System at Amazon
"Earns top marks for easy installation and excellent customer service."
Best Budget: PureDrop 5-Stage Reverse Osmosis System at Amazon
"For less than $150, you can enjoy drinking water that tastes better."
Best for Under Sink: iSpring Reverse Osmosis Water Filter System at Amazon
"Fits under a standard kitchen sink so it won't take up counter space."
Best for Well Water: iSpring Reverse Osmosis System with UV Sterilizer at Amazon
"Has 7 stages of treatment, including an 11-watt UV light."
Best for Apartments: ZIP Countertop Reverse Osmosis Water Filter at Amazon
"Has a similar footprint and appearance similar to a pod coffee maker."
Best Countertop: APEC Portable Countertop Reverse Osmosis System at Amazon
"Saves your cabinet space and won’t require any drilling."
Best for Drinking Water: Home Master Reverse Osmosis System at Amazon
"Offers full contact purification, re-mineralization, and fast dispenser action."
Best High-Output: APEC High Output Reverse Osmosis Water Filter at Amazon
"Received gold certification for removing up to 99 percent of contaminants."
Best Tankless: iSpring Tankless Reverse Osmosis System at Amazon
"The water has been freshly filtered and hasn’t been sitting in a storage tank."
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Best for Well Water: iSpring RCC7AK-UV Reverse Osmosis Drinking Water Filtration System with UV Sterilizer
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