---
product_id: 451860055
title: "Max Water Reverse Osmosis 4040 Commercial RO Membrane (ULP-4040: 2600GPD) size 4\" x 40\" good for Industrial, Agricultural, Whole House & more (2)"
brand: "max water"
price: "฿26426"
currency: THB
in_stock: true
reviews_count: 2
category: "Max Water"
url: https://www.desertcart.co.th/products/451860055-max-water-reverse-osmosis-4040-commercial-ro-membrane-ulp-4040
store_origin: TH
region: Thailand
---

# 2600 GPD capacity 90 ft² membrane area 99.35% impurity rejection Max Water Reverse Osmosis 4040 Commercial RO Membrane (ULP-4040: 2600GPD) size 4" x 40" good for Industrial, Agricultural, Whole House & more (2)

**Brand:** max water
**Price:** ฿26426
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your water game with industrial strength purity—don’t get left behind!

## Quick Answers

- **What is this?** Max Water Reverse Osmosis 4040 Commercial RO Membrane (ULP-4040: 2600GPD) size 4" x 40" good for Industrial, Agricultural, Whole House & more (2) by max water
- **How much does it cost?** ฿26426 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/451860055-max-water-reverse-osmosis-4040-commercial-ro-membrane-ulp-4040)

## Best For

- max water enthusiasts

## Why This Product

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

## Key Features

- • **Trusted Expertise:** Backed by 15+ years of U.S.-based innovation and customer satisfaction—join thousands who refuse to settle for less.
- • **Precision Filtration:** 99.35% impurity rejection rate ensures crystal-clear water, filtering contaminants down to 0.0001 microns.
- • **Versatile Integration:** Seamlessly compatible with top industry models like Dow Filmtec AG4040FF and GE XLE-4040 for flexible system upgrades.
- • **Engineered for Durability:** Robust 90 ft² active membrane area with BPA-free, ISO 9001 certified construction built to last 24-36 months.
- • **Industrial-Grade Capacity:** Delivers up to 2600 gallons of ultra-pure water daily—power your operations without compromise.

## Overview

Max Water’s ULP-4040 Commercial RO Membrane is a premium 4" x 40" filtration powerhouse engineered in the U.S. for industrial, agricultural, and whole-house applications. Delivering up to 2600 gallons per day with a 99.35% impurity rejection rate, it features advanced thin film composite technology, a large 90 ft² membrane area, and BPA-free durable construction certified to ISO 9001 standards. Designed for superior performance and longevity, this membrane integrates effortlessly with leading filtration systems, ensuring reliable, high-quality water purification tailored to North American water conditions.

## Description

Buy Max Water Reverse Osmosis 4040 Commercial RO Membrane (ULP-4040: 2600GPD) size 4" x 40" good for Industrial, Agricultural, Whole House & more (2): Replacement Under-Sink Water Filters - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Membrane - Good
Review: Gave these a try and we are running 3ppm now, a really good option.

## Features

- Premium Commercial Membrane: Our 4040 membrane features an impressive 90 ft² of active membrane area and an optimized 8-pound final product weight, delivering superior durability and performance over inferior alternatives. Expertly engineered by U.S. specialists, this membrane is tailored for North American water quality, ensuring long-lasting and dependable filtration.
- Optimal Purity & Performance: Achieve exceptional water quality with our ULP-4040 4" x 40" RO Membrane capable of producing UP TO 2600 Gallons Per Day, featuring a 99.35% impurity rejection rate, 600 psi Optimum Pressure: 100 psi (80-150) Salt Removal Rate: 99.20% PH levels and salt concentration < 2000 (pH 3-10) Maximum free chlorine tolerance: <0.1 ppm.
- Choosing the Right Membrane: Effectively filter contaminants like heavy metals (fluoride, lead, chromium), organic materials, and harmful minerals with a 0.0001 micron TFC membrane. Each membrane model is designed for specific water qualities, so understanding your water chemistry, pressure, and ppm is crucial for selection. Keep in mind that this membrane type is not suitable for whole-house filtration; a different setup is required for that purpose. Make sure to choose the appropriate model based on your unique water needs.
- Versatile & High Capacity: The ULP-4040 4 x 40 inch RO Membrane is designed for whole-house, agricultural, and industrial applications. This membrane delivers a robust capacity of 2,600 GPD and allows for seamless integration with industry-leading models, including Dow Filmtec AG4040FF, TW30-4040, and GE XLE-4040.
- Advanced and Improved Membrane Technology: Our labs in the United States utilize innovative thin film composite (TFC) membrane technology, engineered to provide superior performance and durability for efficient water filtration and desalination.
- ISO 9001 Certified Quality: Our ULP-4040 Membrane meets ISO 9001 standards, ensuring high-quality manufacturing processes and reliable performance for your water purification system.
- Durable & Long-Lasting: Shipped dry in a sealed package to maintain peak condition, the ULP-4040 Membrane is built for longevity, with a life expectancy of 24 to 36 months depending on water quality, temperature, and pressure. Constructed with BPA-free components, it ensures that no toxic plastic materials are used, making it safe for all water filtration needs.
- Trusted Expertise: With over 15 years in the water filtration industry, Max Water has delivered effective solutions and exceptional customer service to millions of families. Choose Max Water for reliable, high-quality filtration solutions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B29NCY45 |
| Best Sellers Rank | #156,512 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2,006 in Replacement Under-Sink Water Filters |
| Brand | Max Water |
| Customer Reviews | 4.4 4.4 out of 5 stars (15) |
| Date First Available | May 25, 2022 |
| External Testing Certification | UL |
| Item Weight | 19.11 pounds |
| Item model number | 4040 |
| Manufacturer | Max Water |
| Material | Polypropylene (PP) |
| Number of Items | 2 |
| Product Benefits | Provides high-quality, pure water for industrial, agricultural, and whole-house use with a long-lasting durable design, suitable various filtration needs. |
| Product Dimensions | 4"D x 8"W x 40"H |
| Set Name | Pack of 2 |
| UPC | 680392206749 680392206909 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Max Water
- **External Testing Certification:** UL
- **Material:** Polypropylene (PP)
- **Product Dimensions:** 4"D x 8"W x 40"H

## Images

![Max Water Reverse Osmosis 4040 Commercial RO Membrane (ULP-4040: 2600GPD) size 4" x 40" good for Industrial, Agricultural, Whole House & more (2) - Image 1](https://m.media-amazon.com/images/I/511GZDVqOJL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Membrane
*by J***E on June 5, 2025*

Good

### ⭐⭐⭐⭐⭐ Review
*by I***N on February 3, 2025*

Gave these a try and we are running 3ppm now, a really good option.

## Frequently Bought Together

- Max Water Reverse Osmosis 4040 Commercial RO Membrane (ULP-4040: 2600GPD) size 4" x 40" good for Industrial, Agricultural, Whole House & more (2)
- 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 Thailand*
*Store origin: TH*
*Last updated: 2026-01-23*