







💧 Elevate your water game—because your health deserves the purest sip!
This 50 GPD Reverse Osmosis Membrane Replacement Filter by HIDROTEK offers advanced polyamide composite filtration certified by NSF/ANSI Standard 58. It efficiently removes contaminants as small as 0.0001 microns, including heavy metals, fluoride, and total dissolved solids, ensuring fresh, clean water for up to 24 months or 35,000 gallons. Designed to fit standard 1812/2012 RO housings, it supports a flow rate of 50 gallons per day at 60 psi, making it an easy, reliable upgrade for most residential RO systems.
















| ASIN | B0787SHMTZ |
| Batteries | 1 AA batteries required. |
| Best Sellers Rank | #103,674 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #737 in Replacement Under-Sink Water Filters |
| Brand | Geekpure |
| Customer Reviews | 4.6 4.6 out of 5 stars (864) |
| Date First Available | January 31, 2018 |
| External Testing Certification | NSF |
| Is Discontinued By Manufacturer | No |
| Item Weight | 6 ounces |
| Item model number | GP-TW-1812-50 |
| Manufacturer | HIDROTEK |
| Material | Polyamide,Polysulfone,Non-woven Fabric |
| Number of Items | 1 |
| Product Benefits | NSF certificated membrane,Reduces TDS,Heavy metal,Arsenic,Lead,Mercury,Fluoride and more |
| Product Dimensions | 12"D x 1.8"W x 1.8"H |
| UPC | 680577668294 |
| Unit Count | 1 Count |
K**N
A nice RO Water membrane
This was cheaper than the one I usually get and it's exactly the same RO membrane, same size
G**O
Replaced Pure-Flo membrane
I bought this to replace a Pure-Flo membrane that had reached the end of its usefulness. I'm convinced the original membrane, also rated at 50 GPD was in fact 25 GPD. I'm filtering water almost twice as quickly at about 8 ppm. That's pretty impressive, if you ask me. Way better than the original membrane. Also, now the pipes don't hum and squeal like they used to with the old membrane.
A**R
Excellent membrane.
Product fits and works well. Great value
E**N
It works.
edit: after additional hours of usage the membrane seems to have reached its stable level of rejection just under 97%. Good enough. Previously was 3 stars: It is doing okay for the price. Hopefully it will get better with another hour or two of use. After an hour of near continuous operation It is running at about 91.4% rejection. That's pretty bad. (I flushed the membrane for about 30 seconds before I started and for about 15 seconds about every 10-15 minutes during that hour of operation). As a point of comparison, swapping to a slightly older membrane, also an inexpensive 50 gpd, is rejecting at 97.7%. I used a TDS meter to measure incoming TDS of 175, outgoing of 15-16 from the Geekpure 50gpd and 4 from my older membrane.
N**.
Perfect Membrane!!
This membrane fit my reverse osmosis system perfectly. After flushing out the membrane, I tested the TDS in my water, and it read 0.03. Great product!
D**N
Nice
Great seller fast shipping
A**E
Water Taste Improved Quickly
I was not noticing any taste improvement after changing the carbon filters as well as the polishing filter. Time to change the RO membrane I thought and it worked! it was just as easy as changing other filters and what a difference it made!
E**G
Good quality
Second purchase, very good quality.
B**D
This membrane filter works fine. I replaced with the old one which was in use for 12 months. The previous membrane produced water with TDS of 5, the new filter produced RO water with TDS of 12. Given the fact, the TDS gets better overtime, the performance of these filter are acceptable.
R**N
Works great
M**B
Funciona muy bien. No notas ninguna diferencia con las marcas mas costosas
M**1
Entrega mas rápido, es bueno precio.
E**O
Ottimo è perfettamente compatibili con il mio impianto di depurazione