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Reverse Osmosis Membranes

Filmtec-(BW30-2540)-Brackish-Water-Membrane-850-GPD-2.5-x-40,Isopure-Water,1

Filmtec (BW30-2540) Brackish Water Membrane 850 GPD 2.5" x 40"

price $285.95
Filmtec-(TW30-2521)-Tap-Water-Membrane-325-GPD-2.5-X-21,Isopure-Water,2

Filmtec (TW30-2521) Tap Water Membrane 325 GPD 2.5" X 21"

price $482.56
Isopure Water · Reverse Osmosis Membranes

Reverse Osmosis Membranes

The membrane is the heart of an RO system — the semipermeable element that actually rejects dissolved solids. We carry thin-film composite (TFC) residential and encapsulated membranes from Filmtec, Watts, PureT, Hydrotech and Omnipure, in the GPD ratings and form factors that fit standard and proprietary systems.

How to choose a membrane

Match GPD and size. Residential membranes are commonly 1812 form factor rated 50–100 GPD — match your system's rating.
TFC vs. encapsulated. Standard TFC elements drop into a membrane housing; encapsulated (PuROTwist-style) membranes include their own shell for tool-free swaps.
Proprietary fits. Rainsoft, Sears/Kenmore and other brands use specific membranes — buy the compatible listed for your unit.
Protect it. Chlorine destroys TFC membranes — always run carbon pre-filtration and change it on time.

Tell us your system or membrane part number and we'll match it. Start here.



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