Filmtec SW30-2540 2.5″ x 40″ Seawater Membrane

Filmtec SW30-2540 2.5" x 40" Seawater Membrane

The Filmtec SW30-2540 2.5" x 40" Seawater Membrane is a seawater reverse-osmosis membrane element for compatible desalination and marine watermaker systems. This page uses the manufacturer reference and the existing Yacht-Mate product information to identify the component without assuming compatibility beyond the stated system or housing.

Product specifications

• Manufacturer: DuPont FilmTec
• Model: SW30-2540
• Element dimensions: 2.4" diameter x 40.0" length
• Nominal permeate flow: 700 GPD (2.6 m³/day) at manufacturer test conditions
• Applied test pressure: 800 psi (55 bar)
• Stabilized salt rejection: 99.7%
• Maximum feed flow: 6 gpm (1.4 m³/h)
• Pressure vessel: Fits nominal 2.5-inch I.D. pressure vessels
• Yacht-Mate SKU: SW30-2540

Where is the Filmtec SW30-2540 2.5" x 40" Seawater Membrane used?

A seawater reverse-osmosis membrane element for compatible desalination and marine watermaker systems. On a yacht or boat, confirm the exact position and service procedure from the installed equipment documentation before replacing the component.

How do I select the correct replacement?

Match the product model or reference, cartridge dimensions or housing format, and the equipment model already installed onboard. Do not assume that two filters or membranes are interchangeable simply because they look similar or share a nominal size.

Explore Yacht-Mate’s reverse osmosis filters and watermaker filters for compatible replacement components.

Frequently Asked Questions About Filmtec SW30-2540 2.5" x 40" Seawater Membrane

What pressure vessel does the FilmTec SW30-2540 fit?

DuPont specifies this element for nominal 2.5-inch I.D. pressure vessels. Confirm vessel length and the installed membrane reference before ordering.

What is the nominal output of the FilmTec SW30-2540?

The manufacturer rates the element under defined seawater test conditions; actual production onboard varies with feedwater salinity, temperature, pressure and system recovery.

What salt rejection is specified for the SW30-2540?

Use the stabilized salt-rejection value in the product specifications above, which is based on DuPont test conditions rather than a guaranteed onboard result.

Can I replace a SW30-2540 with a SW30-2521?

Do not assume interchangeability. The two elements have different lengths and nominal permeate-flow ratings, so the pressure vessel and watermaker specification must be checked.