EXPRESS WATER

Express Water - FLTMEME50 Reverse Osmosis Membrane RO Membrane 50 GPD Water Filter Replacement Under Sink and Reverse

50+ bought in the past month

$19.99

About this item

  • 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
$19.99

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Delivery β€” 13 Apr – 17 Apr
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Product details

MaterialThin Film Composite
Product Dimensions2"D x 12"W x 2"H
Item Weight6.4 Ounces
External Testing CertificationANSI, NSF
Product BenefitsExperience clean water with quick and easy replacement reverse osmosis membranes, providing long-lasting filtration and value with up to 99.99% impurity reduction. See more

Technical specifications

materialThin Film Composite
product_dimensions2"D x 12"W x 2"H
item_weight6.4 ounces
external_testing_certificationANSI, NSF
product_benefitsExperience clean water with quick and easy replacement reverse osmosis membranes, providing long-lasting filtration and value with up to 99.99% impurity reduction.
brandEXPRESS WATER
eu_spare_part_availability_duration1 Years
set_name50 GPD
upc766742641016 641990963243
global_trade_identification_number00641990963243
unit_count1.0 Count
number_of_items1
manufacturerExpress Water
item_model_numberFLTMEME50
best_sellers_rank#19,287 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #159 in Replacement Under-Sink Water Filters
is_discontinued_by_manufacturerNo
date_first_availableMay 24, 2016

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Customer reviews

4.71,032 ratings

Customers say

Customers find the reverse osmosis membrane works well, with one noting it performs as good as more expensive alternatives.

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Good replacements for my APEC ROES-50

R.Allenβ€”September 22, 2023βœ“ Verified purchase

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. Read more

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Filter? i barely knower

MKβ€”November 27, 2025βœ“ Verified purchase

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. Read more

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Solid 6 months of pure water

Thomasβ€”May 29, 2021βœ“ Verified purchase

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! Read more

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Good quality

Kegsβ€”December 16, 2025βœ“ Verified purchase

Definitely need this for my water filtering system. I love this brand. Read more

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Seems like a good replacement

Valerie H.β€”March 18, 2019βœ“ Verified purchase

In inherited an RO system when we bought our house, and I am new to RO. Our system was cobbled together by a local shop. Many of these membranes are 40 or 50 bucks. Are they better? I have no idea. All I can tell you is our water taste better and flow rate is up. I bought cheaper to see if I really wanted to keep the system at all. I think I do. We have the sink tap and this also feeds our fridge water/ice maker, so we don’t need the very small, very expensive water filter for the Fridge. I would buy this filter again. Read more

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Good product at a great price!

Brian Rockfordβ€”July 26, 2025βœ“ Verified purchase

This product came packaged great and the quality so far seems really good! Read more

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Five star company product!

Emertherβ€”February 3, 2021βœ“ Verified purchase

Swapping these is a lot easier than expected. Regarding the actual filtration of the R/O Membranes are perfect, 270+ tds down to ~7ppm along with a 3 stage prefiltration of course. Happy! EDIT: Make sure you swap the flow restrictor along with the RO membrane. Mine lasted nearly 2 RO membranes, though make sure you get appropriate CC restrictor per membrane rating. This particular 100GPD needs 1000CC flow restrictor. Not sure why Express water shipped the kit with 600CC one as it allegedly degrades life of the membrane by early choking which I could agree with as that issue ruined the flow restrictor. Perhaps its EW's ecological way of thinking not to waste on water bill, or to be "green earth" but you'll end up needing to get new RO membrane sooner soo, idk? And if you collect RO waste water like I do (could never use the drain mount kit for RO, imho it is a sin to waste water like that, you can still use it to flush the toilet at least!!!) for example, mainly for watering plants that like hard water, not a single drop is wasted and you'll get 1000ml filtered water in a minute instead of 600. Read more

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Worked as expected

Louieβ€”June 7, 2024βœ“ Verified purchase

I purchased this Express Water 100 GPD RO Membrane filter to add to the other filter set. The filter fitted/ worked as expected. No problems. Read more

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