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SW30-2540 DuPont FilmTec™ 700 GPD at 800 PSI 2.5 x 40 inch 99.7% Rejection Membranes
Regular price $224.78 USDRegular priceSale price $224.78 USD -
Replaces SW30-2521 DuPont FilmTec 300 GPD at 800 PSI 2.5 x 21 inch Watermaker Seawater Desalination Machine Membranes
Regular price $183.00 USDRegular priceSale price $183.00 USD -
PV-2540SW HCTI Watermaker Housings 1000 PSI FRP Fiberglass
Regular price $490.05 USDRegular priceSale price $490.05 USD -
2SF15SEEL Cat Pump 1.5 GPM / 5.7 LPM 1200 PSI 3/8" NPT(F) 1725 RPM Direct Drive 316 Stainless Steel
Regular price $1,399.99 USDRegular priceSale price $1,399.99 USD -
2SFQ29SEEL Cat Pump 2.85 GPM / 10.8 LPM 1200 PSI 3/8" NPT(F) Inlet / Discharge Port Size 1725 RPM Direct Drive 316 Stainless Steel
Regular price $1,299.99 USDRegular priceSale price $1,299.99 USD -
SW30-2521 DuPont FilmTec™ 300 GPD at 800 PSI 2.5 x 21 inch Watermaker Desalination Machine Seawater Membranes
Regular price $241.56 USDRegular priceSale price $241.56 USD -
2514 Watermaker Housings 1000 PSI FRP Fiberglass Desalination Machine 2.5 x 14 inch Membrane Pressure Vessels
Regular price $396.00 USDRegular priceSale price $396.00 USD -
LG SW 4040 R 1,950 GPD at 800 PSI 4 x 40 inch Desalination Machine Watermaker Seawater High Rejection LG Chem Water Solutions Membranes
Regular price $370.13 USDRegular priceSale price $370.13 USD -
Seawater 150 GPD at 800 PSI 2.5 x 14 inch 99.5% Rejection Membrane
Regular price $235.11 USDRegular priceSale price $235.11 USD -
SWC5-LD-4040 Hydranautics Nitto Membranes
Regular price $319.77 USDRegular priceSale price $319.77 USD -
SW30-2514 DuPont FilmTec 150 GPD at 800 PSI 2.5 x 14 inch 99.4% Rejection Membranes
Regular price $295.52 USDRegular priceSale price $295.52 USD -
2.5 x 14 inch Desalination Machine Watermaker Membrane Housing + Membrane SET ( PV-2514SW-SET )
Regular price $791.99 USDRegular priceSale price $791.99 USDSold out -
2SFQ42SEEL Cat Pump 4.2 GPM / 15.9 LPM 1200 PSI 316 Stainless Steel 1725 RPM Direct Drive 3/8" NPT(F) Inlet & Discharge Port Size
Regular price $1,499.99 USDRegular priceSale price $1,499.99 USD -
SW30HRLE-4040 DuPont FilmTec™ Membranes
Regular price $418.06 USDRegular priceSale price $418.06 USD -
TM810M Toray 1,200 GPD at 800 PSI 4 x 40 inch Membranes
Regular price $287.10 USDRegular priceSale price $287.10 USD -
SW30-4021 FilmTec™ DOW / DuPont 800 GPD at 800 PSI 4 x 21 inch Desalination Machine Watermaker Seawater Membranes
Regular price $510.09 USDRegular priceSale price $510.09 USD
Collection: Watermaker Components & Kits
This premium collection provides everything needed to build, repair, or upgrade commercial and marine watermaker systems. We offer a complete selection of high-pressure seawater desalination components, including advanced reverse osmosis (RO) membranes, durable fiberglass pressure vessels, and specialized stainless steel high-pressure pumps. These professional-grade parts are engineered to convert high-salinity seawater into safe, potable drinking water for offshore marine environments, sailing yachts, and coastal facilities.
At the core of these systems are our seawater RO membranes, available in standard marine sizes ranging from compact 2.5" x 14" elements to high-capacity 8.0" x 40" modules. We stock industry-leading brands such as DuPont FilmTec, Hydranautics, LG Water Solutions, and Toray, alongside our highly efficient HCTI direct replacements. To safely house these critical elements, we supply heavy-duty FRP fiberglass pressure vessels rated for 1,000 PSI to easily withstand the extreme operating pressures required for continuous marine desalination.
For operators looking to power their systems, this collection features dedicated 316 stainless steel Cat Pumps designed to resist severe saltwater corrosion while delivering reliable, continuous pressure up to 1,200 PSI. We also provide complete watermaker kits that package the membrane, housing, high-pressure pump, motor, and necessary control valves into one convenient setup. Whether you are outfitting a small recreational boat or a large commercial vessel, these components guarantee dependable, self-sustaining freshwater production.
| Specification | Details |
| Product Category | Watermaker Components, Pumps, Housings & Kits |
| Membrane Technology | Seawater Reverse Osmosis (Polyamide TFC) |
| Available Element Sizes | 2.5" x 14", 2.5" x 21", 2.5" x 40", 4.0" x 21", 4.0" x 40", 8.0" x 40" |
| Standard Operating Pressure | 800 PSI (Membranes) |
| Component Max Pressure Ratings | 1,000 PSI (FRP Housings) / 1,200 PSI (Cat Pumps) |
| Pump Construction | 316 Stainless Steel (Corrosion Resistant) |
| Featured Brands | DuPont FilmTec, Hydranautics, Toray, LG Water Solutions, Cat Pumps, HCTI |
| Primary Applications | Marine Desalination, Boat Watermakers, Offshore Platforms |