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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PureGen Water Filters ®

PureGen ® Compatible Replacement Water Filters, TFC Reverse Osmosis Membranes, DIY Replacement Parts and HELP Guides

Puregen ERO-535 & RO5-35 5 Stage RO System

Puregen ERO-535P 5 Stage RO System

Puregen EROUV-600 5 Stage RO System

Puregen EROUV-600P 5 Stage RO System

(Order from the list below)

Or order replacement water filters and RO membranes for one of the other following reverse osmosis systems from * PureGen ®.

Puregen ERO-316 3 Stage RO System

Puregen ERO-435 & RO4-35 4 Stage RO Systems

Puregen ERO-100P High Flow 5 Stage RO System

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.

* Puregen is the registered trademark of Puregen, the manufacturer of Puregen 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 Puregen. Rather, these replacement filters, RO reverse osmosis membranes and DIY replacement parts are manufactured by other companies. While these replacement water filters, repair parts and reverse osmosis membranes are compatible for use in Puregen under counter reverse osmosis water filtration equipment, we make no representation as to whether using these water filter cartridges and RO reverse osmosis membranes is consistent with the warranty and specifications applicable to Puregen under sink drinking water system equipment.