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💧 Elevate your water game with crystal-clear purity — because your health deserves the best!
This 100 GPD Reverse Osmosis Membrane Replacement by HIDROTEK is NSF/ANSI Standard 58 certified to remove impurities as small as 0.0001 micron, including heavy metals and fluoride. Designed with durable polyamide composite material, it fits standard 1812/2012 RO housings and delivers up to 100 gallons of purified water daily. With a lifespan of up to 24 months or 35,000 gallons, it ensures long-lasting, fresh, and healthier water for drinking, cooking, and beverages. Easy to install and compatible with most residential RO systems, it’s the smart upgrade for millennial professionals seeking premium water quality and peace of mind.
















| ASIN | B0787SPHNV |
| Best Sellers Rank | #45,427 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #347 in Replacement Under-Sink Water Filters |
| Brand | Geekpure |
| Customer Reviews | 4.4 4.4 out of 5 stars (737) |
| Date First Available | January 31, 2018 |
| External Testing Certification | NSF |
| Is Discontinued By Manufacturer | No |
| Item Weight | 7.2 ounces |
| Item model number | GP-TW-1812-100G |
| 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 | 1.97"D x 1.97"W x 11.81"H |
| UPC | 680577668300 |
| Unit Count | 1.0 Count |
A**R
Love these membranes!
I switched to these membranes a while back. I use them at work with DI after the RO system. Most importantly they always reject at least at 99%. I use the 100 gpd. With a permeate pump it will perform better and make water faster by about 80% when used on a drinking water system. I consistently see the tds at 1 or 2 ppm out of the membrane. Not the case with a lot of other membranes.These hold at 99% for a long time like a year or longer. Really depends on the incoming tap water temperature. tds, pressure and a water softener really helps RO systems run really pure. Then for drinking I use a mineral cartridge to add back in higher ph, Calcium and magnesium. So it will go from 1 or 2ppm to around 40ppm after the mineral cartridge. My customers tell me I turn them into water snobs..That’s how much they like the water including myself.
P**N
Higher capacity with great price.
Larger capacity RO membrane unit. Excellent replacement cartridge, excellent value.
M**F
good filtration but a little slow
my tap water is around 300ppm. I'm getting it down to 9ppm with these filters. I'm running two 100gpd membranes which is making about 140 gallons per day at my regulated 40psi of household pressure. I kinda wish i bought the 150gpd membranes so i could be closer to a true 200gpd. I'm sure if i hooked it up to my unregulated hose bib on the side of my house which is 80psi i would get that but last time i bought 150gpd membranes i had much higher ppm for my filtered water, so I'll stick with these for now. Biggest thing for me is they work and get me very close to 0ppm
D**S
good 1
Changed my 6 stage filters out and gave me 31 gallons before it started only giving me a drip or 2 in hours. Bought these as a " fix the first thing and then move on to the next if it doesn't work." 2 hours later the storage tank gave me 6 gallons(full draining). Waited another 2 and same thing. This filter is the real deal and cheap enough to not hurt the wallet.
W**L
Works but not at the listed rate
I have hard tap water and pretty high PSI I checked my TDS coming it at 256-259 TDS. After the Geekpure membrane I am reading 13-15 tds. Average Rejection rate of about 94.92% okay rejection rate for this cheap membrane.
M**L
Good replacement forgot how many have bought so far
Can't beat the price tested doing his job and I have very bad water 1200 BPM price was excellent had no problem with fit nice to see the price come down on membranes
R**O
Money Wasted
Does not work, don't buy these knockoffs!
R**O
Very nice
Very good quality
M**R
Fantastic RO Membranes. Used a few different makes over the years but these perform well and give a consistent high quality permeate water output. I live in a hard water area and these membranes work their socks off to give a permeate output of around 6ppm.
D**I
Das Produkt entspricht genau den Beschreibungen und hat meine Erwartungen voll erfüllt. Die Qualität und Verarbeitung sind sehr gut, alles wirkt stabil und durchdacht. Besonders bei dem günstigen Preis ist das Preis-Leistungs-Verhältnis absolut überzeugend. Für mich eine klare Kaufempfehlung!
K**O
Adapté à mon osmoseur sous évier. TB RAS.
T**N
utile
L**L
I have been a repeat buyer of this item. It does the job well.
Trustpilot
1 week ago
1 month ago