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Reverse Osmosis Membranes

SUEZ-AK-90;-4-x-40;-High-Rejection;-2300-GPD;-Replacement-Reverse-Osmosis-Membrane---(Product-Flow-@-120-PSI)-(Veolia),Isopure-Water,1

SUEZ AK-90; 4" x 40"; High Rejection; 2300 GPD; Replacement Reverse Osmosis Membrane - (Product Flow @ 120 PSI) (Veolia)

price $599.99
SUEZ-AG2540TF;-2.5-X-40-710-GPD-TFC-Replacement-Reverse-Osmosis-Membrane-for-Tap/Brackish-Water-(Veolia),Isopure-Water,2

SUEZ AG2540TF; 2.5" X 40" 710 GPD TFC Replacement Reverse Osmosis Membrane for Tap/Brackish Water (Veolia)

price $406.46
Filmtec-(XLE-2521)-Low-Energy-Membrane-365-GPD-2.5X21,Isopure-Water,3

Filmtec (XLE-2521) Low Energy Membrane 365 GPD 2.5"X21"

price $445.00
CSM-RE2540-BE---2.5-x-40;-1000-GPD-Brackish-Water-Replacement-Reverse-Osmosis-Membrane,Isopure-Water,4

CSM RE2540-BE - 2.5" x 40"; 1000 GPD Brackish Water Replacement Reverse Osmosis Membrane

price $215.00
Filmtec-(TW30-4014)-Tap-Water-Membrane-525-GPD-@-4X14,Isopure-Water,5

Filmtec (TW30-4014) Tap Water Membrane 525 GPD @ 4"X14"

price $675.12
Filmtec-(TW30-2540)-Tap-Water-Membrane-850-GPD-2.5-X-40,Isopure-Water,6

Filmtec (TW30-2540) Tap Water Membrane 850 GPD 2.5" X 40"

price $475.60
CSM-RE2540-BLN---2.5-x-40;-1000-GPD---Low-Energy---Brackish-Water-Replacement-Reverse-Osmosis-Membrane,Isopure-Water,7

CSM RE2540-BLN - 2.5" x 40"; 1000 GPD - Low Energy - Brackish Water Replacement Reverse Osmosis Membrane

price $238.96
Filmtec-(LC-LE-PRO-4040)-Brackish-Water-Low-Energy-Membrane-2,500-GPD-4-X-40,Isopure-Water,8

Filmtec (LC LE PRO 4040) Brackish Water Low Energy Membrane 2,500 GPD 4 "X 40"

price $630.34
SUEZ-AK4021TF;-4-X-21-1050-GPD-TFC-Replacement-Reverse-Osmosis-Membrane---(Product-flow-@-107-PSI)-(Veolia),Isopure-Water,9

SUEZ AK4021TF; 4" X 21" 1050 GPD TFC Replacement Reverse Osmosis Membrane - (Product flow @ 107 PSI) (Veolia)

price $499.00
SUEZ-AK2521TF;-2.5-X-21-300-GPD-TFC-Replacement-Reverse-Osmosis-Membrane---(Product-flow-@-107-PSI)-(Veolia),Isopure-Water,10

SUEZ AK2521TF; 2.5" X 21" 300 GPD TFC Replacement Reverse Osmosis Membrane - (Product flow @ 107 PSI) (Veolia)

price $285.00
Filmtec-(BW30-4040)-Brackish-Water-Membrane-2,400-GPD-4X40,Isopure-Water,11

Filmtec (BW30-4040) Brackish Water Membrane 2,400 GPD 4"X40"

price $374.98
PureT-USA-EZRO-Encapsulated-Replacement-Reverse-Osmosis-Membrane-with-Check-Valve---1:1-Ratio,Isopure-Water,12

PureT USA EZRO Encapsulated Replacement Reverse Osmosis Membrane with Check Valve - 1:1 Ratio

price from $89.60
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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