Find the right reverse osmosis water filter cartridges for your system. Shop by brand, part number and other keywords by using the search bar below.

Catches rust, silt, and suspended particles so they never reach the membrane.
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Removes chlorine and chloramine, which would otherwise oxidize and destroy the membrane.
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Forces water through the membrane that rejects dissolved salts, metals, and most contaminants.
Shop Membranes →Reverse osmosis (RO) replacement filters keep your drinking water system working the way it was designed, and every RO system relies on three main types of filters working together. The sediment filter removes sand, silt and rust to protect the rest of the system. The carbon filter reduces chlorine, taste and odour, and also protects the RO membrane, since chlorine will damage the thin film composite membranes used in most residential systems. The RO membrane is the heart of the system, reducing dissolved solids, salts, metals and many other contaminants. Many systems also use a carbon post-filter to polish the taste of the water before it reaches the faucet, and some include ultrafiltration (UF) membranes or pH booster (remineralization) cartridges. This collection includes RO replacement filters and money saving filter packs from brands such as Hydrotech, Canature, Aqua Flo and Pentair, including replacements for the Hydrotech 4-stage, Canature Hydrotech 475 Q-Series and Pentair GRO-475 systems.
Most RO sediment and carbon filters should be replaced every 6 to 12 months, while the RO membrane typically lasts 2 to 5 years depending on your water quality and how well the pre-filters are maintained. Changing the pre-filters on schedule is the best way to extend membrane life, and a total dissolved solids (TDS) meter is an easy way to check whether your membrane is still performing. To find the right reverse osmosis filters, match the brand and model of your system or the part number on your existing cartridges. Aquatell has specialized in residential water treatment for over 20 years and our expert team would be happy to assist you in finding the right replacement reverse osmosis filter cartridges for your needs.

Site authorship & editorial oversight
Reid Thornley, WQA Master Water Specialist
Business Founder · CWQA Board of Directors · 25 Years of Hands-On Water Treatment Experience
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