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Reverse Osmosis Membranes

Osmotik--TQ56---Q-Series-PuROTwist-Replacement-Encapsulated-Reverse-Osmosis-Membrane-with-Built-In-Flow-Control,Isopure-Water,1

Osmotik- TQ56 - Q-Series PuROTwist Replacement Encapsulated Reverse Osmosis Membrane with Built In Flow Control

price from $83.56
CSM-RE8040-BLN---8-x-40;-12,000-GPD-BW-LE-Low-Energy-Replacement-Reverse-Osmosis-Membrane,Isopure-Water,2

CSM RE8040-BLN - 8" x 40"; 12,000 GPD BW-LE Low Energy Replacement Reverse Osmosis Membrane

price from $974.86
CSM-RE4040-BLR---4-x-40;-1900-GPD-BW-LE-Brackish-Water-Replacement-Reverse-Osmosis-Membrane,Isopure-Water,3

CSM RE4040-BLR - 4" x 40"; 1900 GPD BW-LE Brackish Water Replacement Reverse Osmosis Membrane

price $289.53
SUEZ-AK-90LE;-4-x-40;-High-Rejection;-2300-GPD;-Replacement-Reverse-Osmosis-Membrane---(Product-Flow-@-110-PSI)-(Veolia),Isopure-Water,4

SUEZ AK-90LE; 4" x 40"; High Rejection; 2300 GPD; Replacement Reverse Osmosis Membrane - (Product Flow @ 110 PSI) (Veolia)

price $284.99
SUEZ-AG4021TF;-4-X-21-1050-GPD-TFC-Replacement-Reverse-Osmosis-Membrane-for-Tap/Brackish-Water-(Veolia),Isopure-Water,5

SUEZ AG4021TF; 4" X 21" 1050 GPD TFC Replacement Reverse Osmosis Membrane for Tap/Brackish Water (Veolia)

price $496.48
Filmtec-(TW30HP-4619)-Medical-Application-Membrane-1,450-GPD-4.6-x-19,Isopure-Water,6

Filmtec (TW30HP-4619) Medical Application Membrane 1,450 GPD 4.6" x 19"

price $1,197.06
Filmtec-(SW30-4040)-Seawater-Membrane-1,950-GPD-4-X-40,Isopure-Water,7

Filmtec (SW30-4040) Seawater Membrane 1,950 GPD 4" X 40"

price $875.00
Filmtec-(SW30-4021)-Seawater-Membrane-800-GPD-4-X-21,Isopure-Water,8

Filmtec (SW30-4021) Seawater Membrane 800 GPD 4" X 21"

price $508.18
Filmtec-(NF-4040)-NANO-Filtration-Membrane-6,800-GPD-8X40,Isopure-Water,9

Filmtec (NF-4040) NANO Filtration Membrane 6,800 GPD 8"X40"

price $1,375.00
Filmtec-(NF90-2540)-NANO-Filtration-Membrane-700-GPD-2.5X40,Isopure-Water,10

Filmtec (NF90-2540) NANO Filtration Membrane 700 GPD 2.5"X40"

price $582.35
Filmtec-(BW30-400)-Brackish-Water-Membrane-10,500-GPD-8X40,Isopure-Water,11

Filmtec (BW30-400) Brackish Water Membrane 10,500 GPD 8"X40"

price $978.89
Filmtec-(BW30PRO-365)-Brackish-Water-Membrane-9,500-GPD-8X40,Isopure-Water,12

Filmtec (BW30PRO-365) Brackish Water Membrane 9,500 GPD 8"X40"

price $1,499.00
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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