










💧 Elevate your water filtration game with the membrane trusted by pros!
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.
| 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 |
C**E
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
K**Y
Good quality
On time
F**D
Does not reject 99% Poor quality filter
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.
G**S
Esto me sirvió en mi negocio
R**H
great little ro filter
these work well for our ro water system for our cnc machines
E**O
Work about a month and gets clogged
I'm professional water filtration system company owner never got so bad membrane so poor quality
L**Z
Las membranas fueron sometidas a 60 psi, presión por debajo del rango de trabajo y no funcionaron, dejan pasar muchos disueltos
J**S
No cumple con lo publicitado.
Trustpilot
Hace 2 semanas
Hace 1 mes