















💧 Elevate your hydration game with the ultimate RO membrane upgrade!
The ROULP-1812-50 is a premium 50 GPD reverse osmosis membrane made from 100% food-grade Thin Film Composite material, delivering a 97% stabilized salt rejection rate and reducing over 99% of contaminants. Designed to fit standard 11.75 x 1.75-inch RO housings, it offers broad compatibility with leading brands and a long lifespan of up to 36 months. Certified to NSF/ANSI 58 standards and backed by dedicated US-based support, it ensures safe, clean drinking water with effortless installation.









| ASIN | B06XC9BVVC |
| Best Sellers Rank | #7,610 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #62 in Replacement Under-Sink Water Filters |
| Brand | Membrane Solutions |
| Compatible Water Purifier Models | APEC Water Systems ROES-50 |
| Customer Reviews | 4.6 4.6 out of 5 stars (3,094) |
| Date First Available | February 28, 2017 |
| External Testing Certification | NSF |
| Global Trade Identification Number | 00850071881820 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 7.2 ounces |
| Item model number | ROULP-1812-50 |
| Manufacturer | Membrane Solutions Corp |
| Material | Polyamide Thin-Film Composite |
| Number of Items | 1 |
| Product Benefits | Provides safe-clean drinking water by reducing hundreds of impurities |
| Product Dimensions | 1.75"D x 1.75"W x 11.75"H |
| UPC | 850071881820 |
| Unit Count | 1.0 Count |
D**A
Right fit
Perfect fit and works great
A**A
Good quality RO membrane
Supplying with fairly clean water (filtered to 1 micron, 230 ppm after softening, charcoal filtered) I got zero (<5) ppm; the membrane it replaced was at 30 ppm on the same supply. Rated 75 gpd; I got 38 gpd on 45 psi, supply water temperature 55F. This is a reasonable ratio of actual to rating; the membranes are rated at 65 psi and 77F. 100% would buy again.
S**N
Value for my money
Product is as described and a great price
V**S
Works great
Would as should. We use this as a replacement filter for the BRS 5 stage RODI filter system.
G**O
Great Filter, Works Good, Fits Nicely, Easy to Install.
These are nice replacement filters for our Krystal Pure K10 reverse osmosis system. This one is a little tricky to replace as you have to remove a water line, but other than that it fit well and works good.
B**L
Membrane Solutions 75 GPD RO Membrane
Very good filter, fits like the original.
G**.
Lasts for 24 - 36 months!
I just want to remind everyone that this part of multi-part filters lasts 24 to 36 months! The other components, sediment filter, carbon filter, de-ionizing filter, all only last 6 months (1 year at best) so don't keep replacing this one as often. I keep replacing mine too early.
J**.
Great buy
Great buy, will let you know in 6 months if it hold up...
R**N
Works well
R**I
الفلتر كفو وجودة ممتازة بس 50 جالون لا انصحك فيه خذ نفس المنتج بس 75 جالون افضل من هذا
M**K
Seems to be working well, only been running it for 1 month. Haven’t bothered testing the water yet.
M**N
Fits and works as expected.
D**A
Works well. Not had an issues with the membrane. I periodically check the TDS with an inline meter and the readings are very low. Much cheaper than the big brand names.
Trustpilot
3 weeks ago
2 months ago