---
product_id: 525928916
title: "BW-4040, 4 x 40 RO Membrane for Desalination of Brackish Water, BW 4040 Reverse Osmosis Membrane for Whole House, Municipal water, NSF Certified, 99.5% Desalination Rate, 2400 GPD"
brand: "virego"
price: "$5882"
currency: MXN
in_stock: true
reviews_count: 8
category: "Virego"
url: https://www.desertcart.mx/products/525928916-bw-4040-4-x-40-ro-membrane-for-desalination-brackish
store_origin: MX
region: Mexico
---

# 2400 GPD high water yield 0.0001 micron filtration precision 99.5% desalination rate BW-4040, 4 x 40 RO Membrane for Desalination of Brackish Water, BW 4040 Reverse Osmosis Membrane for Whole House, Municipal water, NSF Certified, 99.5% Desalination Rate, 2400 GPD

**Brand:** virego
**Price:** $5882
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate Your Water Game: Pure, Powerful, Professional

## Quick Answers

- **What is this?** BW-4040, 4 x 40 RO Membrane for Desalination of Brackish Water, BW 4040 Reverse Osmosis Membrane for Whole House, Municipal water, NSF Certified, 99.5% Desalination Rate, 2400 GPD by virego
- **How much does it cost?** $5882 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/products/525928916-bw-4040-4-x-40-ro-membrane-for-desalination-brackish)

## Best For

- virego enthusiasts

## Why This Product

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

## Key Features

- • **Pure Water, Zero Compromise:** Experience ultra-fine 0.0001 micron filtration that removes 99.5% of salts and impurities for crystal-clear water.
- • **Smart Pre-Filter Protection:** Extend membrane life with recommended PP cotton and activated carbon pre-filters, reducing clogging and maintenance downtime.
- • **Certified Quality You Can Trust:** NSF and ISO 9001 certified, crafted with BPA-free, food-grade materials for safe, reliable performance.
- • **Hassle-Free Maintenance & Support:** Flush and maintain easily with clear guidelines plus responsive after-sales service guaranteeing satisfaction or replacement.
- • **Powerful Output, Maximum Efficiency:** Generates an impressive 2400 gallons per day, ensuring your whole house or business never runs dry.

## Overview

The BW-4040 is a high-performance 4x40 reverse osmosis membrane designed for whole-house and municipal brackish water desalination. Delivering 2400 gallons per day with 99.5% salt removal and ultra-fine 0.0001 micron filtration, it ensures clean, safe water. Certified to NSF and ISO 9001 standards and made from BPA-free materials, it combines efficiency with trusted quality. Ideal for professionals demanding reliable, high-capacity water purification with easy maintenance and expert support.

## Description

Buy BW-4040, 4 x 40 RO Membrane for Desalination of Brackish Water, BW 4040 Reverse Osmosis Membrane for Whole House, Municipal water, NSF Certified, 99.5% Desalination Rate, 2400 GPD: Replacement Under-Sink Water Filters - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Well priced, good fit. - Works great, perfect fit!
Review: Cost efficient membrane - I stumbled upon this brand a few years ago after ordering multiple membranes for an RO/DI setup to produce 0ppm water. I had the same model membrane in use for around 2 years. This is for a car wash setup and I don't hold back on producing 0 ppm water for every aspect of the wash process for multiple vehicles. I received this new one to replace the old one, immediately could read the water in at 220ppm, the water out at the membrane was 14ppm. Perfect to keep my DI healthy and only pulling it down to 0ppm from 14. I did notice some changes in tape used on the new filter (appears to be lesser quality than previous). And they include a coupling now if you're hooking up to multiple in series? Either way, I'm happy and will continue to use this one in the future.

## Features

- 【High efficiency filtration】BW 4040 membrane has high water yield and good desalination performance. Average permeability 2,400 GPD, 99.5% desalination rate. BW-4040 membrane adopts reverse osmosis technology, filtration is finer, filtration precision can be up to 0.0001 a micron, filtration is more thorough. Reverse osmosis membrane system not only removes impurities, rust, providing clean, pure and safe water for your business
- 【Preprocessing Settings】When you use the 4 x 40 ro membrane, please do the pretreatment, you can install the front PP cotton and activated carbon cartridge, to protect your RO membrane from particles, residual chlorine, organic damage.Regular maintenance: Replace the pre-filter cartridge (PP cotton, activated carbon) every 3-6 months to avoid the accumulation of pollutants leading to membrane clogging
- 【Food grade materials】Not only do we firmly control the materials used in our membranes, but we also use BPA-free or other toxic plastic materials to produce our filter housings. Quality Certification:Certified to ISO 9001 standards. We consistently provide products and services that meet the quality requirements of our customers
- 【Flushing operation】 Flush the membrane for more than 30 minutes after the first installation or long-term disuse; manually flush the membrane for 10 minutes after each replacement of the filter element.Water pressure requirement: the inlet water pressure should be ≥0.2MPa (about 2kg), when the pressure is insufficient, install a booster pump.Impact of water temperature: the best water temperature 25 ℃, every 1 ℃ lower, the water production decreased by about 3%
- We have good after-sales service, if you have any dissatisfaction with our bw 4040 membrane, please contact us immediately. We will solve your problem within 12 hours and give you the best result. For any reason you're not completely satisfied,please let us know and it can be directly replaced a new one. So buy it with confidence

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Best Sellers Rank | #107,730 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #456 in Under-Sink & Countertop Filtration |
| Brand | Virego |
| Customer Reviews | 4.4 out of 5 stars 71 Reviews |
| External Testing Certification | ISO 9001 |
| Item Weight | 7 Pounds |
| Material | Fiberglass |
| Product Benefits | Removes Impurities, Rust and Harmful Minerals |
| Product Dimensions | 4"D x 4"W x 40"H |

## Product Details

- **Material:** Fiberglass
- **Product Dimensions:** 4"D x 4"W x 40"H
- **Item Weight:** 7 Pounds
- **External Testing Certification:** ISO 9001
- **Product Benefits:** Removes Impurities, Rust and Harmful Minerals

## Images

![BW-4040, 4 x 40 RO Membrane for Desalination of Brackish Water, BW 4040 Reverse Osmosis Membrane for Whole House, Municipal water, NSF Certified, 99.5% Desalination Rate, 2400 GPD - Image 1](https://m.media-amazon.com/images/I/61u6OzB9ASL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: What is the GPM?**
A: I believe it's like 2 GPM with one membrane. It adds if you have more membranes in your system.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Well priced, good fit.
*by L***A on October 28, 2025*

Works great, perfect fit!

### ⭐⭐⭐⭐⭐ Cost efficient membrane
*by E***L on October 16, 2024*

I stumbled upon this brand a few years ago after ordering multiple membranes for an RO/DI setup to produce 0ppm water. I had the same model membrane in use for around 2 years. This is for a car wash setup and I don't hold back on producing 0 ppm water for every aspect of the wash process for multiple vehicles. I received this new one to replace the old one, immediately could read the water in at 220ppm, the water out at the membrane was 14ppm. Perfect to keep my DI healthy and only pulling it down to 0ppm from 14. I did notice some changes in tape used on the new filter (appears to be lesser quality than previous). And they include a coupling now if you're hooking up to multiple in series? Either way, I'm happy and will continue to use this one in the future.

### ⭐⭐⭐⭐⭐ Great price, quality, and customer service!
*by T***E on June 23, 2024*

Before I even received my membrane, the seller contacted me to inform me that they would be more than happy to replace or refund for any reason once I received it. First thing I’ve ever ordered on Amazon and received a return guarantee for an item even if used. Also, the price and value of the product is very good. For just $120, you get a filter that compares with any local product that could cost twice the amount. I am using it in an RO DI window cleaner water purifier. I use a sediment and carbon filter before running into the RO filter. Then, the clean water goes into a DI tank. Out of that comes pure water with a TDS of 0ppm. I highly recommend the product because of the price, value, and awesome customer service.

## Frequently Bought Together

- BW-4040, BW-4040 Reverse Osmosis Membrane for Desalination of Brackish Water, 4x40 Reverse Osmosis Membrane for Commercial, Industrial, Whole House, NSF Certified, 99.5% Desalination Rate, 2400 GPD
- Max Water - Heavy Duty - Reverse Osmosis 4040 Membrane Housing - 4" x 40" good for industrial use - 4040 housing

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*Product available on Desertcart Mexico*
*Store origin: MX*
*Last updated: 2026-02-11*