---
product_id: 40181401
title: "- APPLIED MEMBRANE INC | Reverse Osmosis Membrane Element for Tap Water | High Flow 3000 GPD at 225 psi | 99.5% Rejection | Replacement Commercial RO Membrane"
brand: "applied membranes inc."
price: "€ 638.54"
currency: EUR
in_stock: true
reviews_count: 8
category: "Applied Membranes Inc."
url: https://www.desertcart.fi/products/40181401-applied-membrane-inc-reverse-osmosis-membrane-element-for-tap-water
store_origin: FI
region: Finland
---

# 3000 GPD high flow 99.5% salt rejection Made in USA, ISO 9001:2015 certified - APPLIED MEMBRANE INC | Reverse Osmosis Membrane Element for Tap Water | High Flow 3000 GPD at 225 psi | 99.5% Rejection | Replacement Commercial RO Membrane

**Brand:** applied membranes inc.
**Price:** € 638.54
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your water filtration game with the membrane trusted by pros!

## Quick Answers

- **What is this?** - APPLIED MEMBRANE INC | Reverse Osmosis Membrane Element for Tap Water | High Flow 3000 GPD at 225 psi | 99.5% Rejection | Replacement Commercial RO Membrane by applied membranes inc.
- **How much does it cost?** € 638.54 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/40181401-applied-membrane-inc-reverse-osmosis-membrane-element-for-tap-water)

## Best For

- applied membranes inc. enthusiasts

## Why This Product

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

## Key Features

- • **Industry-Leading Purity:** Achieves 99.5% salt rejection for crystal-clear, contaminant-free water every time.
- • **Unmatched High Flow Capacity:** Delivers a powerful 3,000 gallons per day to keep your commercial system running at peak performance.
- • **Built for Reliability & Longevity:** Crafted in an ISO 9001:2015 certified USA facility with 100% quality and performance testing.
- • **Precision Engineered for Compatibility:** Fits standard 4x40 PVC and stainless steel housings with easy 3/4" male stinger connection.
- • **Versatile Tap & Brackish Water Solution:** Optimized thin film composite membrane handles a wide pH range (2-11) and chlorine tolerance for diverse water sources.

## Overview

The APPLIED MEMBRANE INC 4x40 Reverse Osmosis Membrane is a high-performance commercial-grade filter element designed for small RO systems. Made in the USA under ISO 9001:2015 standards, it delivers an impressive 3,000 gallons per day flow rate at 225 psi and removes 99.5% of salts. Its thin film composite membrane fits standard housings and is rigorously tested for quality and durability, ensuring reliable, long-lasting purification of tap or brackish water.

## Description

AMI 4" x 40" Reverse Osmosis Membrane | Tap or Brackish Water | High Flow 3,000 GPD RO Membrane AMI Part Number: M-T4040AHF Membrane Size (Nominal): 4 x 40 Membrane Dimensions: 3.9"Dia. x 40"L Flow Rate: 3,000 GPD (11,355 LPD) Applied Pressure: 225 psi (1.6 MPa) Stabilized Salt Rejection: 99.5% For Housing: Standard 4" x 40" Outer Wrap: Tape Wrapped Membrane Type: Tap or Brackish Water Membrane Sheet: TFC (Thin Film Composite) Element Type: Spiral Wound Feed Water Test Temperature: 77°F (25°C) Single Element Recovery: 15% Chlorine Tolerance: 0 Feed water pH Range: 2-11 End Style: Male PWT (Stinger Style) Country of Manufacture: United States (USA) AMI commercial RO membrane elements produce high quality water from tap or brackish water in small commercial RO systems, and are among the finest in the industry. With hundreds of thousands of membranes in operation in water filtration systems world-wide, AMI membranes have earned a reputation of delivering consistent, reliable, and long lasting performance, making AMI Membranes the natural choice for use in small commercial RO systems. AMI Small Commercial RO Membranes are constructed of tap water TFC (thin film composite) membrane material and fit standard PVC and Stainless Steel RO Membrane Housings. M-T4040AHF can be used as direct replacement for many industry-standard 4x40 Size RO Elements with 3/4" male product water tubes ("stinger style") which are rated at 225psi. AMI Membranes are Made in the USA in their ISO 9001:2015 Certified Facility and are 100% Quality and Performance Tested.

Review: Works as good as the originals so far - They fit perfect and so far are doing a great job. Brought our output ppm from 500+ to basically immeasurable again. We have had it in for several months now and still doing well
Review: Good quality - On time

## Features

- Made in the USA in ISO 9001:2015 Quality Certified Facility. 100% Quality and Performance Tested.
- Applied Membranes 4x40 RO membrane fits standard PVC and Stainless Steel RO Membrane Housings.
- Highest Flow: 3000 GPD at 225 psi. 99.5% Salt Rejection. Tape Wrapped. Thin Film Reverse Osmosis Membrane
- AMI commercial RO membrane elements produce high quality water from tap or brackish water in small commercial RO systems
- Replacement RO Membrane Water Filter for Commercial Reverse Osmosis Systems

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004AHGL98 |
| Best Sellers Rank | #217,581 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,468 in Replacement Under-Sink Water Filters |
| Brand | APPLIED MEMBRANES INC. |
| Customer Reviews | 4.0 4.0 out of 5 stars (22) |
| Date First Available | May 27, 2016 |
| External Testing Certification | ISO |
| Is Discontinued By Manufacturer | No |
| Item Weight | 6.64 pounds |
| Item model number | M-T4040AHF |
| Manufacturer | APPLIED MEMBRANES INC. |
| Material | Thin Film Composite Membrane |
| Number of Items | 1 |
| Product Benefits | Produces 3,000 gallons per day of purified water at 99.5% salt rejection (stabilized) |
| Product Dimensions | 4"D x 4"W x 40"H |
| Set Name | 4x40 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** APPLIED MEMBRANES INC.
- **External Testing Certification:** ISO
- **Material:** Thin Film Composite Membrane
- **Product Benefits:** Produces 3,000 gallons per day of purified water at 99.5% salt rejection (stabilized)
- **Product Dimensions:** 4"D x 4"W x 40"H

## Images

![- APPLIED MEMBRANE INC | Reverse Osmosis Membrane Element for Tap Water | High Flow 3000 GPD at 225 psi | 99.5% Rejection | Replacement Commercial RO Membrane - Image 1](https://m.media-amazon.com/images/I/71gqoX0vgrL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works as good as the originals so far
*by C***E on May 11, 2021*

They fit perfect and so far are doing a great job. Brought our output ppm from 500+ to basically immeasurable again. We have had it in for several months now and still doing well

### ⭐⭐⭐⭐⭐ Good quality
*by K***Y on November 29, 2023*

On time

### ⭐ Does not reject 99% Poor quality filter
*by F***D on June 13, 2025*

This filter is pretty low quality if you are looking for an RO filter than actually takes out most of the TDS. Even with a pump, this does a poor job. If you are using DI after the filter, expect this to cost you a lot more in DI costs. I usually use Axeon HF5 filters and get rid of them when the TDS hits 30+ after a long period of use. These filters will not filter water that low brand new. The 99% rejection claim is a gross mis-statement. I would steer clear of this filter if the rejection rate is important to your usage. This was a huge waste of money for me. Straight to the dumpster.

## Frequently Bought Together

- APPLIED MEMBRANE INC | Reverse Osmosis Membrane Element for Tap Water | High Flow 3000 GPD at 225 psi | 99.5% Rejection | Replacement Commercial RO Membrane
- DIGITEN Wrench for 10" inch Reverse Osmosis Water Filter Canister Housing, Wrench for 10 inches RO Filter Housing

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-03-07*