CSM residential membranes individually sold


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Replacement membranes for the Streamline 5-stage reverse osmosis system, easily installed under a kitchen sink.

CSM RE1812 series membranes is your solution to superior water purification in residential settings. Engineered by CSM, a trusted brand renowned for its commitment to quality, this membrane stands as a pinnacle of filtration technology.

At the heart of this membrane lies its exceptional capability to remove a wide array of inorganic and organic compounds, ensuring that your drinking water is free from impurities. With an average NaCl rejection rate of 98%, you can trust that only the purest water passes through.

Operating at a permeate flow range of 24 gallons per day (GPD) to 100 gallons per day (GPD), this membrane delivers consistent performance, providing you with ample purified water for your household needs. Its standardized size fits seamlessly into most membrane housings, offering versatility and ease of installation.

Crafted to meet NSF 58 certification standards, this membrane undergoes rigorous testing to guarantee its efficacy and reliability. Whether you’re upgrading your existing reverse osmosis system or embarking on a new filtration journey, the CSM RE1812-24 Membrane is your assurance of clean, refreshing water.

For optimal performance, pair this membrane with the corresponding drain flow control, ensuring compatibility and efficiency. With CSM, you not only invest in a product but also gain access to comprehensive support and sanitizing instructions, ensuring the longevity and effectiveness of your filtration system.

Membrane Options:

Model Name Performance Dimension (Inch) Testing Pressure Test Condition
RE1812-24 24 GPD (92 m3/day) 1.8 x 11.73 60 PSI Household Standard
RE1812-35 35 GPD (132 m3/day) 1.8 x 11.73 60 PSI Household Standard
RE1812-50 50 GPD (175 m3/day) 1.8 x 11.73 60 PSI Household Standard
RE1812-60 60 GPD (227 m3/day) 1.8 x 11.73 60 PSI Household Standard
RE1812-80 80 GPD (303 m3/day) 1.8 x 11.73 60 PSI Household Standard
RE2012-100 100 GPD (397 m3/day) 2 x 12 60 PSI Household Standard


Additional information

Weight 10 lbs
Dimensions 8 × 8 × 12 in
Permeate Flow Rate

100 gpd, 24 gpd, 35 gpd, 50 gpd, 60 gpd, 80 gpd