---
product_id: 258795946
title: "SW30-2521 Seawater Desalination Reverse Osmosis Membrane"
brand: "dow filmtec"
price: "€ 597.44"
currency: EUR
in_stock: true
url: https://www.desertcart.sk/products/258795946-sw30-2521-seawater-desalination-reverse-osmosis-membrane
store_origin: SK
region: Slovakia
---

# Highest flow rates for max water output Ultra-low pressure drop at 15 psig max Precision automated membrane fabrication SW30-2521 Seawater Desalination Reverse Osmosis Membrane

**Brand:** dow filmtec
**Price:** € 597.44
**Availability:** ✅ In Stock

## Summary

> 💦 Elevate your water game with the ultimate desalination membrane!

## Quick Answers

- **What is this?** SW30-2521 Seawater Desalination Reverse Osmosis Membrane by dow filmtec
- **How much does it cost?** € 597.44 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/258795946-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

- • **High-Temperature Endurance:** Operates reliably up to 113°F, perfect for demanding desalination environments.
- • **Unmatched Flow Performance:** Delivers industry-leading water throughput for both land and marine desalination needs.
- • **Compact & Lightweight Design:** Slim 2.5" x 21" profile weighing just 930g fits seamlessly into existing systems.
- • **Chlorine-Resistant Durability:** Tolerates free chlorine levels below 0.1 ppm, extending membrane lifespan.
- • **Precision Engineered Consistency:** Automated fabrication ensures every membrane performs flawlessly, batch after batch.

## Overview

The Dow Filmtec SW30-2521 is a cutting-edge seawater reverse osmosis membrane engineered for maximum flow and consistent performance. Its precision automated fabrication and chlorine tolerance make it ideal for both land and sea desalination systems, while its compact size and high-temperature resilience ensure seamless integration and durability.

## Description

SW30-2521 Seawater Desalination Reverse Osmosis Membrane

## 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 |
| Item Weight | 930 g |
| 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 |
| Color | Yellow |
| Material | Polyamide Thin-Film Composite |
| Item Package Quantity | 1 |
| Temperature Range | 113 Degrees Fahrenheit |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

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

## Images

![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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- Dow Filmtec SW30-2540 Seawater Reverse Osmosis Membrane

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**Shop now:** [https://www.desertcart.sk/products/258795946-sw30-2521-seawater-desalination-reverse-osmosis-membrane](https://www.desertcart.sk/products/258795946-sw30-2521-seawater-desalination-reverse-osmosis-membrane)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-02-24*