---
product_id: 21558565
title: "DOW FilmTec 4\"×40\" FRP Wrapped BW Membrane, 2,900 GPD, LC HR-4040"
brand: "filmtec membranes"
price: "24430386₫"
currency: VND
in_stock: true
reviews_count: 3
url: https://www.desertcart.vn/products/21558565-dow-filmtec-4-40-frp-wrapped-bw-membrane-2-900
store_origin: VN
region: Vietnam
---

# Flow Rate: 2900 GPD Dimensions: 4" x 40" Stabilized Salt Rejection: 99.5% DOW FilmTec 4"×40" FRP Wrapped BW Membrane, 2,900 GPD, LC HR-4040

**Brand:** filmtec membranes
**Price:** 24430386₫
**Availability:** ✅ In Stock

## Summary

> 💦 Elevate Your Water Quality Game!

## Quick Answers

- **What is this?** DOW FilmTec 4"×40" FRP Wrapped BW Membrane, 2,900 GPD, LC HR-4040 by filmtec membranes
- **How much does it cost?** 24430386₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/21558565-dow-filmtec-4-40-frp-wrapped-bw-membrane-2-900)

## Best For

- filmtec membranes enthusiasts

## Why This Product

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

## Key Features

- • **Compact Design:** With a sleek 4" x 40" size, this membrane fits seamlessly into your existing systems.
- • **Superior Salt Rejection:** Achieve a remarkable 99.5% stabilized salt rejection for pristine water quality.
- • **Robust Pressure Handling:** Designed to operate at 225 PSI (15.5 bar), ensuring durability and reliability.
- • **Unmatched Flow Efficiency:** Experience a powerful 2,900 gallons per day, ensuring your water needs are met effortlessly.
- • **Industry-Leading Technology:** Leverage advanced FilmTec technology for optimal performance and longevity.

## Overview

The DOW FilmTec 4"×40" FRP Wrapped BW Membrane is engineered for high performance, delivering an impressive flow rate of 2,900 gallons per day while maintaining a 99.5% salt rejection rate. Its compact dimensions and robust pressure handling make it an ideal choice for both residential and commercial water purification systems.

## Description

Buy DOW FilmTec 4"×40" FRP Wrapped BW Membrane, 2,900 GPD, LC HR-4040: Replacement Under-Sink Water Filters - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Excellent product and service - Excellent product. Will be ordering again.
Review: failed after 2 months - failed after 2 months not worth money

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Filmtec Membranes |
| Customer Reviews | 3.6 out of 5 stars 4 Reviews |
| Material | frp |
| Product Dimensions | 4"D x 4"W x 40"H |
| Unit Count | 1 Count |

## Product Details

- **Material:** frp
- **Product Dimensions:** 4"D x 4"W x 40"H
- **Brand:** Filmtec Membranes
- **Unit Count:** 1 Count

## Images

![DOW FilmTec 4"×40" FRP Wrapped BW Membrane, 2,900 GPD, LC HR-4040 - Image 1](https://m.media-amazon.com/images/I/61NWLJDHejL.jpg)

## Questions & Answers

**Q: Will this work for a car wash reverse osmosis system? tds reading must be between 0-26ppm. what is the life expectancy?**
A: The answer is yes, assuming the following conditions are met: the housing this filter is installed in must also be present, a storage tank system  must be present, and depending on the hardness of your incoming water, it may be necessary to pre-filter the incoming water before it enters the RO membrane.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent product and service
*by C***R on May 24, 2021*

Excellent product. Will be ordering again.

### ⭐ failed after 2 months
*by N***S on October 23, 2021*

failed after 2 months not worth money

### ⭐⭐⭐⭐⭐ Best quality 40 inch membrane
*by R***R on April 1, 2021*

Good product.

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**Shop now:** [https://www.desertcart.vn/products/21558565-dow-filmtec-4-40-frp-wrapped-bw-membrane-2-900](https://www.desertcart.vn/products/21558565-dow-filmtec-4-40-frp-wrapped-bw-membrane-2-900)

---

*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-05-20*