---
product_id: 56668650
title: "Dow Filmtec SW30-2521 Seawater Desalination Reverse Osmosis Membrane"
brand: "dow filmtec"
price: "484895CFA"
currency: XOF
in_stock: true
url: https://www.desertcart.sn/products/56668650-dow-filmtec-sw30-2521-seawater-desalination-reverse-osmosis-membrane
store_origin: SN
region: Senegal
---

# Engineered for seawater desalination Highest flow rates for max water output Precision automated membrane fabrication Dow Filmtec SW30-2521 Seawater Desalination Reverse Osmosis Membrane

**Brand:** dow filmtec
**Price:** 484895CFA
**Availability:** ✅ In Stock

## Summary

> 🌊 Pure power, perfected flow — desalination redefined.

## Quick Answers

- **What is this?** Dow Filmtec SW30-2521 Seawater Desalination Reverse Osmosis Membrane by dow filmtec
- **How much does it cost?** 484895CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/56668650-dow-filmtec-sw30-2521-seawater-desalination-reverse-osmosis-membrane)

## Best For

- dow filmtec enthusiasts

## Why This Product

- Trusted dow filmtec brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Chlorine Resilience:** Tolerates free chlorine levels below 0.1 ppm, extending membrane life and reliability.
- • **Compact & Durable Design:** Slim 2.5" x 21" polyamide composite membrane built to withstand harsh marine environments.
- • **Robust Pressure Handling:** Operates efficiently up to 15 psig pressure drop, optimizing system energy use.
- • **Unmatched Flow Performance:** Delivers industry-leading water throughput to quench any demand, on land or sea.
- • **Precision Engineered Consistency:** Automated fabrication ensures every membrane performs flawlessly, batch after batch.

## Overview

The Dow Filmtec SW30-2521 is a high-performance reverse osmosis membrane designed specifically for seawater desalination. Featuring the highest flow rates available and precision automated manufacturing, it guarantees consistent, reliable water purification. With a robust pressure tolerance of 15 psig and chlorine resistance below 0.1 ppm, this compact polyamide thin-film composite membrane is engineered to deliver superior desalination efficiency in both land and marine applications.

## Description

Dow Filmtec

## Features

- Features highest flow rates available to meet the water demands of both land and sea based desalinates
- Improved membrane design and automated, precision element fabrication result in the most consistent product performance available
- Maximum Pressure Drop: 15 psig
- Free Chlorine Tolerance: <0.1 ppm

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Dow Filmtec |
| Part Number | FILMTEC-SW30-2521 |
| Product Dimensions | 53.34 x 6.35 x 6.35 cm; 930 g |
| Item model number | FILMTEC-SW30-2521 |
| Size | 2.5" x 21"L |
| Colour | Yellow |
| Material | Polyamide Thin-Film Composite |
| Item Package Quantity | 1 |
| Temperature Range | 113 Degrees Fahrenheit |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 930 g |

## Product Details

- **Material:** Polyamide Thin-Film Composite
- **Product dimensions:** 6.4D x 53.3W x 6.4H centimetres
- **External testing certification:** NSF
- **Product benefits:** Converts seawater to drinking water when used in a WaterMaker or RO System
- **Brand:** Dow Filmtec

## Images

![Dow Filmtec SW30-2521 Seawater Desalination Reverse Osmosis Membrane - Image 1](https://m.media-amazon.com/images/I/717au-nBwZL.jpg)

## Questions & Answers

**Q: Is this the membrane for the Spectra Ventura 150 Deluxe Watermaker Spectra Part Number FT-MB-20**
A: Yes, this element will work for that system.

**Q: is this just a part,or the whole thing,,I do not see how this could possibly work ?**
A: Hello!  If I understand your question correctly, you're trying to determine whether this is a complete water filtration system or just a component of one.

This is the replacement membrane for a seawater desalination system.  It is a consumable part - not a stand alone system.   This is what goes inside of the white membrane housing/pressure vessels.

I hope that makes sense?

**Q: Will this fit the Katadyn Survovor 35?**
A: This will not work, search for "Katadyn 8012793"

**Q: Did anyone try this on a dessalator 60 water maker ?**
A: My friend on another boat did use this part with his dessalator.

Tip for dessalators... if you are struggling to get the end caps off the pressure vessel to get to the membrane (this part) then remove the "cage" that holds the end caps in place and just bring the watermaker up to pressure slowly.  One end or the other will pop out due to the pressure inside.

## Frequently Bought Together

- Dow Filmtec SW30-2521 Seawater Desalination Reverse Osmosis Membrane
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**Shop now:** [https://www.desertcart.sn/products/56668650-dow-filmtec-sw30-2521-seawater-desalination-reverse-osmosis-membrane](https://www.desertcart.sn/products/56668650-dow-filmtec-sw30-2521-seawater-desalination-reverse-osmosis-membrane)

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-03-21*