Large selection of replacement water filters, reverse osmosis membranes, testing kits and water filter system repair parts. From one water filter or membrane to case quantity discounts.

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Reo-Pure Replacement Water Filters ®

Reo-Pure Replacement Water Filters ®

Reo-Pure ® Under Counter Reverse Osmosis System Compatible Replacement Water Filters, Kleer Flow Reverse Osmosis Membranes, DIY Replacement Parts and HELP Guides


REO-10 (CTA),  REO-15 (TFC), REO-20 (TFC) and REO-30 (TFC)
Reo-Pure EC Series 3 Stage, 4 Stage and 5 Stage 25, 50 and 100 GPD (gallons per day)
Reo-Pure EM Series  36, 50 and 75 GPD
REO-PURE LP-25, LP-50, LP-75, LP-100, LP-200, LP-400 and LP-600 LIGHT COMMERCIAL SERIES

Replacement filters, RO membranes and parts for the following Commercial Reverse Osmosis systems:
REO-PURE LE SERIES RO SYSTEM
REO-PURE LP3 SERIES RO SYSTEM: 50-1,750 GPD MODELS
REO-PURE BLS SERIES RO SYSTEM: 00-18000 GPD MODELS
REO-PURE WMS SERIES 400-6000 GPD MODELS

Easy TDS Membrane Performance Calculator
See If It is Time To Replace Your Membrane

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



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.





* Reo-Pure is the registered trademark of Great Lakes International, the manufacturer of Reo-Pure brand of under counter drinking water system filtration equipment.  The replacement water filter cartridges, reverse osmosis membranes, water tanks, faucets and repair parts listed above are not manufactured or endorsed by Reo-Pure.  Rather, these replacement filters, RO reverse osmosis membranes and replacement parts are manufactured by other companies.  While these replacement water filters, repair parts and reverse osmosis membranes are compatible for use in Reo-Pure under counter reverse osmosis drinking water filtration equipment, we make no representation as to whether using these water filter cartridges, replacement parts and RO reverse osmosis membranes is consistent with the warranty and specifications applicable to Reo-Pure under sink drinking water system equipment.