Filmtec SW30-2540


SW30-2540 Dow Filmtec Reverse Osmosis Sea Water Membrane Element, Watermaker Membrane

Filmtec SW30-2540 is a standard size seawater membrane, widely used for watermakers, desalinators, seawater desalination systems, marine (yacht and boat), Navy and martime applications.
Commonly used in on-board Watermakers to create drinking water from seawater for yachts, boats, and cruise ships.


Watermaker Membrane Replacement, Can Replace Models:

  • Spectra Catalina FT-MB-40. (Long membrane of Spectra Catalina 300)
  • Spectra Newport FT-MB-40.
  • Watermaker Parts for: Stella watermaker, Selmar water maker, FCI watermaker Parts, Schenker watermaker parts …
  • Industry-Standard 2.5×40 size seawater RO membranes


Manufactured by DOW Filmtec, USA.
Free Shipping Australia & New Zealand, Best seawater membrane price.


Improved FILMTEC SW30 2540 seawater reverse osmosis membranes offer the highest productivity while maintaining excellent salt rejection.

FILMTEC SW30-2540 RO membrane elements have the highest flow rates available to meet the water demands of both sea-based and land-based desalinators.

FILMTEC SW30-2540 reverse osmosis membranes may also be operated at lower pressure to reduce pump size, cost and operating expenses.

Improved SW30-2540 FILMTEC seawater RO membrane combined with automated, precision element fabrication result in the most consistent product performance available.

DOW FILMTEC SW30-2540 is FDA – 21 CFR 177.2550; Food and Drug Administration Compliant..



  • Product Name: SW30-2540
  • Applied Pressure psig (bar): 800 (55)
  • Permeate Flow Rate gpd (m³/d): 700 (2.6)
  • Stabilized Salt Rejection: 99.4%
  • Maximum Feed Flow Rate gpm (m³/h): 6 (1.4)
  • Size: 2.4″ x 40″ inch
  • SW302540 RO membranes fit nominal 2.5 inch I.D. pressure vessels
  • Membrane Type: polyamide thin film composite
  • Maximum Operating Temperature: 113°F (45°C)
  • Maximum Operating Pressure: 1,000 psi (69 bar)
  • Maximum Pressure Drop: 15 psig (1.0 bar)
  • pH Range, Continuous Operations: 2 – 11 pH Range, Short-Term Cleaning: 1 – 13
  • Maximum Feed Silt Density Index: SDI 5
  • Free Chlorine Tolerance < 0.1 ppm 
  • Maximum temperature for continuous operation above pH10 is 95°F (35°C)

SW30 2540 Datasheet

SW30-2540 Filmtec Equivalents: Hydranautics SWC-2540 / CSM RE2540-SHF

Buy Watermaker membrane and housing & SAVE.

Additional information

Weight 1.6 kg
Dimensions 116 × 7 × 7 cm


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Revesby, NSW 2212
Sydney, Australia.


+61 (02) 8710 7352