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Low Prices and Fast Shipping
Since 1999
Easy TDS Membrane Performance CalculatorSee If It is Time To Replace Your MembraneFeed Water TDS RO Water TDS SubmitSimply enter your Feed Water TDS and RO Water TDS into the boxes above and click "Submit". The percentage of TDS Rejection will be displayed. We normally recommend membrane replacement once you drop below 75%. This may vary in areas with high TDS in the feed water.See our selection of TDS meters under Water Tests
Simply enter your Feed Water TDS and RO Water TDS into the boxes above and click "Submit". The percentage of TDS Rejection will be displayed. We normally recommend membrane replacement once you drop below 75%. This may vary in areas with high TDS in the feed water.
See our selection of TDS meters under Water Tests
Discontinued - Dow Filmtec ® TFC 24 GPD RO reverse osmosis membrane - standard size 1.75" X 11.75" # 93430
The correct replacement is the Pentair-TLC-24-Membrane. You will receive the Pentair replacement membrane when placing your order for the discontinued Filmtec membrane.
Water Testing, TDS Meters and Water Test Supplies. Large selection, low prices and fast shipping online since 1999.
Water Filter System Parts Department. Find replacement filters, reverse osmosis membranes and repair parts for all major brands. Large selection and in stock inventory. Low prices and fat shipping online since 1999.
Reverse Osmosis Replacement RO Water Accumulator Tanks. Large and small water storage tanks made of SS Stainless Steel, plastic and standard steel. All connecting supplies such as valves, Tees, poly tubing, booster pumps and faucets. Large selection, low prices and fast shipping since 1999.
Replacement Faucets for RO Reverse Osmosis and Pure Drinking Water Filter Systems. Huge selection of styles and finishes in stock. Low prices and fast shipping online since 1999.
UV Ultraviolet Disinfection and Sterilizing Lamps Kills Viruses. Disinfect and sterilize your drinking water for safe water from your RO reverse osmosis, DI or ultra filtration system. Large UV Ultraviolet lamp inventory, low prices and fast shipping online since 1999.
How To Check Tube & Fitting Size. Be sure to check and order the correct size needed for your system. Online service and trouble shooting guide for reverse osmosis drinking water systems.
Be sure to check our Parts Department for important parts such as TDS Testers For Reverse Osmosis Membranes, Replacement Tanks, O-rings , Filter Housing Wrenches, Faucets, Pumps, Fittings, UV Systems and more parts for your reverse osmosis pure water filtration system. View maintenance and servicing tips online at our Installation & Trouble shooting Guide.