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Ozmosis Reverse Osmosis Membrane SW-2521 Seawater Desalination 2.5″x21″

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Ozmosis Brand 2.5″ x 21″ Desalination Seawater Membrane
Optimal Pressure 800 PSI (800-1,000 PSI)
Its Average GPD 300
Made with premium quality materials Toray Brand Sheets
Salt Rejection Rate is 99.5%

Its designed at a compact 2.5″x21″ size, this membrane excels in seawater desalination, offering a substantial 300 gallons per day (GPD) of clean, fresh water. Crafted for marine and residential applications, it efficiently removes salt and impurities, ensuring a consistent supply of high-quality water. Upgrade your water filtration system with confidence, and experience the reliability and performance that SW-2521 has to offer.

Wide Range of Applications: Versatile usability for various applications, including marine use, desalination systems, car washes, irrigation, the food industry, whole house reverse osmosis, commercial reverse osmosis, agricultural, and industrial purposes.

Universal Compatibility: Designed to fit all standard 2.5″ x 21″ membrane housings made of PVC, or fiberglass, ensuring easy installation in different systems.

Premium Material Construction: Crafted from the highest quality materials, featuring Toray brand sheets and Dow brand glue, providing exceptional durability and performance in water purification.

Superior Fiberglass Wound Housing: Utilizes fiberglass wound housing, known for its superior performance and durability when compared to plastic housings, ensuring long-lasting and reliable operation.

Impressive Performance Specifications: Boasts outstanding specifications, including an average production rate of 300 gallons per day (GPD), a maximum pressure rating of 1000 psi, excellent salt rejection at 99.5%, a boron removal rate of 93%, and a 4% recovery rate. It is also designed for use in high total dissolved solids (TDS) water conditions, making it ideal for seawater applications.

This reverse osmosis membrane is specifically designed for seawater use and is not suitable for brackish water applications, making it a suitable choice for environments with elevated TDS levels in their water sources.

Additional information



Average Production

300 GPD

Salt Rejection


Boron Removal Rate


Continuous Running PH



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