---
product_id: 30827335
title: "Express Water - FLTMEME50 – Reverse Osmosis Membrane – RO Membrane 50 GPD Water Filter Replacement – Under Sink and Reverse Osmosis System"
brand: "express water"
price: "$1221"
currency: MXN
in_stock: true
reviews_count: 13
category: "Express Water"
url: https://www.desertcart.mx/products/30827335-express-water-fltmeme50-reverse-osmosis-membrane-ro-membrane-50-gpd
store_origin: MX
region: Mexico
---

# 50 GPD flow rate Thin Film Composite tech 99.99% impurity reduction Express Water - FLTMEME50 – Reverse Osmosis Membrane – RO Membrane 50 GPD Water Filter Replacement – Under Sink and Reverse Osmosis System

**Brand:** express water
**Price:** $1221
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your hydration game with the ultimate 50 GPD RO membrane—because your water deserves the best.

## Quick Answers

- **What is this?** Express Water - FLTMEME50 – Reverse Osmosis Membrane – RO Membrane 50 GPD Water Filter Replacement – Under Sink and Reverse Osmosis System by express water
- **How much does it cost?** $1221 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/30827335-express-water-fltmeme50-reverse-osmosis-membrane-ro-membrane-50-gpd)

## Best For

- express water enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Swap & Go:** Designed for quick, hassle-free membrane replacement—no plumber needed, just pure convenience.
- • **Engineered for Longevity:** Durable Thin Film Composite membrane delivers up to 1 year of premium filtration performance.
- • **Pure Water, Zero Compromise:** Filters out 99.99% of contaminants including heavy metals, fluoride, and arsenic for crystal-clear hydration.
- • **Trusted & Certified Quality:** ANSI & NSF certified for peace of mind—join thousands upgrading their water quality with confidence.
- • **Optimized Flow, Maximum Output:** Delivers up to 50 gallons per day, balancing high capacity with consistent water pressure.

## Overview

The Express Water FLTMEME50 Reverse Osmosis Membrane is a high-performance, Thin Film Composite filter designed to reduce up to 99.99% of impurities including heavy metals, fluoride, and arsenic. Compatible with most under-sink RO systems, it delivers up to 50 gallons of purified water daily and lasts approximately one year. Certified by ANSI and NSF, this membrane offers a reliable, easy-to-replace solution for professionals seeking clean, great-tasting water at home.

## Description

Protect your home, health, and appliances by filtering your water with this RO replacement filter. The Express Water Reverse Osmosis Membrane reduces major impurities from your water and provides clean water for all home uses. Drink water that’s free of 99.97% of particles such as TDS, fluoride, heavy metals, chlorine, taste, odor, VOCs, as well as arsenic, lead and nitrates. Using Reverse Osmosis filtration, this membrane filter reduces more impurities than almost any other filtration method. Start drinking healthy and stop drinking impurities with your own home Reverse Osmosis Water Purification. Other replacement filters leave behind impurities, but Express Water offers the highest contaminant reduction rated Reverse Osmosis Membrane. Great in the kitchen: Improve the taste of your cooking, coffee, ice, and drinks. Experience true Reverse Osmosis purification. Safe filtered fresh tasting H2O. The RO membrane filter is good for up to 1 year of use. This is based on average water quality. Your water filter life may be different depending on your water quality, temperature, and incoming pressure. The membrane focuses on the most difficult to remove impurities found in water. This durable RO membrane can deliver up to 50 gallons of water per day. The membrane set works with 45-80 psi and water temperatures between 40-100°F. It is vacuum sealed with 100% pure food-grade polypropylene casing complete with high capacity density graded membrane layers. Filter your water with a high-quality RO membrane. Choose the filtration that lasts longer to give you the best value: The Express Water 50gpd Reverse Osmosis Membrane FLTMEME50 is the best in reverse osmosis filtration.

Review: Good replacements for my APEC ROES-50 - I have an APEC ROES-50 system and I seen these available for much cheaper than the APEC filter and the reviews were good. I can say that it worked for my system. My tds reading dropped from 13 to 6 after changing this membrane which is where it usually reads after the APEC membrane is changed. Cheaper alternative and works with the APEC system.
Review: Solid 6 months of pure water - This is a reliable, inexpensive filter but here's something to save frustration with the whole system if you don't get water flow: For a while I couldn't figure out why the Express Water spigot flowed very little and the tank wouldn't fill with water. Process of elimination brought me to the air valve at the bottom of the tank. Could there be so much pressure that it prevented water from filling the tank? I bled the air out and immediately the tank began to fill and later, spigot water flow increased but was sub-optimal. Looking at an online manual for the tank I read that you should not mess with the air pressure but nothing about an over-pressurized tank. It said the pressure should be 7-10 psi. Judging from the air I released the tank had to be at 30+ psi. I used an air pump to pressurize the tank to the correct psi and spigot water flow looked just like in the videos! Mission accomplished!

## Features

- Reverse Osmosis Membrane Replacement: Experience what water should taste like with the Express Water reverse osmosis water filtration system reducing up to 99.99% impurities.
- RO Membrane Replacement: Each Express Water replacement RO membrane is specially designed for quick and easy replacement. Get the cleanest water and the best value in your reverse osmosis water filter.
- Reverse Osmosis Membrane: High density graded RO membrane ensures even the smallest of impurities from your drinking water including heavy metals, TDS, arsenic, fluoride, and more.
- Replacement RO Membrane: Express Water RO membranes are made with the highest quality materials for long-lasting filtration and value.
- On Demand Support: Support from experts who can answer any of your questions about your replacement reverse osmosis membranes

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01G4GF9EU |
| Best Sellers Rank | #19,834 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #149 in Replacement Under-Sink Water Filters |
| Brand | EXPRESS WATER |
| Customer Reviews | 4.7 4.7 out of 5 stars (877) |
| Date First Available | May 24, 2016 |
| EU Spare Part Availability Duration | 1 Years |
| External Testing Certification | ANSI, NSF |
| Global Trade Identification Number | 00641990963243 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 6.4 ounces |
| Item model number | FLTMEME50 |
| Manufacturer | Express Water |
| Material | Thin Film Composite |
| Number of Items | 1 |
| Product Benefits | Experience clean water with quick and easy replacement reverse osmosis membranes, providing long-lasting filtration and value with up to 99.99% impurity reduction. |
| Product Dimensions | 2"D x 12"W x 2"H |
| Set Name | 50 GPD |
| UPC | 766742641016 641990963243 |
| Unit Count | 1.0 Count |

## Product Details

- **External Testing Certification:** ANSI, NSF
- **Item Weight:** 6.4 Ounces
- **Material:** Thin Film Composite
- **Product Dimensions:** 2"D x 12"W x 2"H

## Images

![Express Water - FLTMEME50 – Reverse Osmosis Membrane – RO Membrane 50 GPD Water Filter Replacement – Under Sink and Reverse Osmosis System - Image 1](https://m.media-amazon.com/images/I/51Wr45QGqPL.jpg)
![Express Water - FLTMEME50 – Reverse Osmosis Membrane – RO Membrane 50 GPD Water Filter Replacement – Under Sink and Reverse Osmosis System - Image 2](https://m.media-amazon.com/images/I/71NmxEX+RML.jpg)
![Express Water - FLTMEME50 – Reverse Osmosis Membrane – RO Membrane 50 GPD Water Filter Replacement – Under Sink and Reverse Osmosis System - Image 3](https://m.media-amazon.com/images/I/71RfHiSKeiL.jpg)
![Express Water - FLTMEME50 – Reverse Osmosis Membrane – RO Membrane 50 GPD Water Filter Replacement – Under Sink and Reverse Osmosis System - Image 4](https://m.media-amazon.com/images/I/71n4tNWKAEL.jpg)
![Express Water - FLTMEME50 – Reverse Osmosis Membrane – RO Membrane 50 GPD Water Filter Replacement – Under Sink and Reverse Osmosis System - Image 5](https://m.media-amazon.com/images/I/712wZvyATIL.jpg)

## Available Options

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

## Questions & Answers

**Q: Does this remove the toxin fluoride?**
A: The Reverse Osmosis will remove toxic fluoride as a whole, no just one individual filter.

**Q: will this work with ultima VI?**
A: Yes, it's the same size.

**Q: I replaced it with this filter. Now there is no water flow?? What do i do??**
A: Dear Ms. Nicole, 

Thank you for your business and for taking the time to contact Express Water. 

We look forward to assisting you with this matter. 

To better assist you, please check the following components to help determine the cause of no water production from the RO System:

1. Please check if the Feed Water Adapter Valve is in the open position with the red line pointing towards the tube.

2. Please check if the Leak Stop Valve has been activated, opened with the Textile Pad expanded. Should the Textile Pad expand, this will cause the Leak Stop Valve to be activated and incoming water supply to be closed off to the system and will result in no water production. The purpose of the Leak Stop Valve is to detect any leak(s) in the RO System and will shut the incoming water off preventing a small leak from becoming bigger. This will prompt you to check under the sink and be alerted of the initial leak. 

Please remove the expanded Textile Pad and discard as it may not be re-used, . Do NOT place a new pad until the leak is resolved. Please continue to monitor the system for the next 5-10 minutes for any leaks as the system starts to pressurize. If there is a leak, please determine the exact location of the leak and follow necessary troubleshooting steps to resolve the leak. 

Place a new Leak Stop Pad once all connections are secured and there are no leaks after 5-10 minutes of system startup. Please allow 2-3 hours for the Tank to fill. 

3. To check if the system is working properly and producing purified water, please turn the Tank Valve into the "Closed" position pointing away from the tube. Proceed to turn the RO Faucet in the "On" position and let us know if there is any water coming out. It should be a consistent small stream or consistent drip (non-stop), depending on incoming water pressure. 

While the RO Faucet is on, do you hear any water going down the drain?

If you do not hear any water draining, please place your hand on the black drain tube and there should be water flowing through the black tube and down the drain. If there is no flow out the black tube while the RO Faucet is on, please let us know as there may be a clog in the system.  

4. Please check the Drain Line Tubing connection into the drain pipe and make sure that this tube is not restricted in any way to ensure free flow of wastewater.

5. Please lift the RO Tank and let us know if it produced a full tank of water or no water at all? If so, please check the tank pressure. We recommend emptying the water from the Tank and once it is empty, please proceed to add up to 10 psi max into the Tank. This should help increase the pressure of the water coming out of the Tank. Please do not add any more than 10 psi or you will not have any room for water storage as it will be mostly air pressure. 
If after doing all these tests you are still unable to find the cause of the problem, please let me know, as one of the filters might be clogging the system or maybe a misconnection somewhere in the system.

We kindly ask if you could please provide the following information:

Photo(s) of the system showing all the tubings and connections to have a better understanding of your set up.

Please do not hesitate to contact our office directly at (800)992-8876, Monday-Friday, 10am-5pm (PST) should you have any further questions or concerns. We are here to help!

It was our privilege to do business with you, and it would be our pleasure to continue serving you.

Best Regards,
Express Water Team
Toll Free: (800)992-8876
Mon-Fri: 10am-5pm (PST)

**Q: Will this work with aqualife?**
A: Yes it will

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good replacements for my APEC ROES-50
*by R***N on September 22, 2023*

I have an APEC ROES-50 system and I seen these available for much cheaper than the APEC filter and the reviews were good. I can say that it worked for my system. My tds reading dropped from 13 to 6 after changing this membrane which is where it usually reads after the APEC membrane is changed. Cheaper alternative and works with the APEC system.

### ⭐⭐⭐⭐⭐ Solid 6 months of pure water
*by T***S on May 29, 2021*

This is a reliable, inexpensive filter but here's something to save frustration with the whole system if you don't get water flow: For a while I couldn't figure out why the Express Water spigot flowed very little and the tank wouldn't fill with water. Process of elimination brought me to the air valve at the bottom of the tank. Could there be so much pressure that it prevented water from filling the tank? I bled the air out and immediately the tank began to fill and later, spigot water flow increased but was sub-optimal. Looking at an online manual for the tank I read that you should not mess with the air pressure but nothing about an over-pressurized tank. It said the pressure should be 7-10 psi. Judging from the air I released the tank had to be at 30+ psi. I used an air pump to pressurize the tank to the correct psi and spigot water flow looked just like in the videos! Mission accomplished!

### ⭐⭐⭐⭐⭐ Filter? i barely knower
*by M***K on November 27, 2025*

original lasted about a year with daily use. our water is already decent though, not hard or anything. easy to replace and does what it's supposed to well.

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*Product available on Desertcart Mexico*
*Store origin: MX*
*Last updated: 2026-03-18*