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Reverse Osmosis Membranes

Hydronix-(TW-1812)-Thin-Film-Composite-Replacement-Residential-Reverse-Osmosis-Membrane,Isopure-Water,1

Hydronix (TW-1812) Thin Film Composite Replacement Residential Reverse Osmosis Membrane

price from $32.99
SUEZ-AK4040FM;-4-x-40-2300-GPD;-TFC-Replacement-Reverse-Osmosis-Membrane---(Product-Flow-@-107-PSI)-(Veolia),Isopure-Water,2

SUEZ AK4040FM; 4" x 40" 2300 GPD; TFC Replacement Reverse Osmosis Membrane - (Product Flow @ 107 PSI) (Veolia)

price $399.00
Filmtec-(SW30-2540)-Seawater-Membrane-700-GPD-2.5X40,Isopure-Water,3

Filmtec (SW30-2540) Seawater Membrane 700 GPD 2.5"X40"

price $541.65
Filmtec-(TW30-4021)-Tap-Water-Membrane-900-GPD-@-4X21,Isopure-Water,4

Filmtec (TW30-4021) Tap Water Membrane 900 GPD @ 4"X21"

price $450.00
CSM-RE2521-BLN---2.5-x-21;-300-GPD-TW-LE-Replacement-Reverse-Osmosis-Membrane,Isopure-Water,5

CSM RE2521-BLN - 2.5" x 21"; 300 GPD TW-LE Replacement Reverse Osmosis Membrane

price $201.84
Watts-(R96310)-250-GPD-RO-Membrane-for-R13---3-x-10,Isopure-Water,6

Watts (R96310) 250 GPD RO Membrane for R13 - 3" x 10"

price $379.99
Filmtec-(NF270-2540)-NANO-Filtration-Membrane-850-GPD-2.5X40,Isopure-Water,7

Filmtec (NF270-2540) NANO Filtration Membrane 850 GPD 2.5"X40"

price $757.16
Toray-TMG10D-2850-GPD-Brackish-Water-Membrane-4-x-40,Isopure-Water,8

Toray TMG10D 2850 GPD Brackish Water Membrane 4" x 40"

price $429.20
Toray-TMH10A-2400-gpd-Brackish-Water-Membrane-4”-x-40“,Isopure-Water,9

Toray TMH10A 2400 gpd Brackish Water Membrane 4” x 40“

price $429.20
PureT-(ST-RO50)-Quick-Change-Encapsulated-Twist-On-50-GPD-Membrane-for-E5HR0550-RO-System,Isopure-Water,10

PureT (ST-RO50) Quick Change Encapsulated Twist-On 50 GPD Membrane for E5HR0550 RO System

price $81.20
Filmtec-(NF90-4040)-NANO-Filtration-Membrane-2,200-GPD-4-X-40,Isopure-Water,11

Filmtec (NF90-4040) NANO Filtration Membrane 2,200 GPD 4" X 40"

price $792.65
Filmtec-(XLE-2540)-Low-Energy-Membrane-850-GPD-2.5-X-40,Isopure-Water,12

Filmtec (XLE-2540) Low Energy Membrane 850 GPD 2.5" X 40"

price $347.91
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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