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.


99.5% Of All Items In Stock For Same Day Shipping!


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.

* Water Factory ® is the registered trademark of 3M Filtration, the manufacturer of Water Factory ® brand water treatment equipment. The replacement filters and membranes listed above are manufactured by 3M Water Factory as so noted. Water Factory reverse osmosis drinking water systems were also manufactured and sold under the CUNO brand name. We also offer compatible replacement sediment water filters, replacement Carbon Block Water Filters, GAC Carbon Filters, Inline Post Filters, RO Reverse Osmosis Membranes, Pre Filters, faucets, water tanks, valves, pumps, UV Ultraviolet and water testing supplies from various other manufacturers for discontinued CUNO Water Factory drinking water systems.

3M Authorized Water Filtration Dealer for Water Factory and Aqua-Pure Water Filters and Reverse Osmosis Systems

We have been an Authorized Water Factory Systems dealer since 1989. 

In 1999 we became an authorized online distributor.
We know Water Factory!