100 GPD Reverse Osmosis Membrane-NSF Certificated (1)

I’ve been using the Geekpure 100 GPD RO membranes for my system, and they’ve performed exactly as expected. The water quality improvement was noticeable right away—TDS readings dropped significantly, and the water tastes clean and crisp. Installation was simple and fit perfectly with my existing RO setup. Having a 2-pack is a great value, especially if you like to keep a backup on hand. The flow rate is solid for a 100 GPD membrane, and it keeps up well without sacrificing filtration quality. I also appreciate that these are NSF certified, which adds some confidence in the product’s reliability and safety. After weeks of use, performance has remained consistent with no issues. Overall, these are dependable, high-quality replacement membranes at a good price. I’d definitely recommend them to anyone looking to maintain or upgrade their RO system.

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.

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.

Reasonable price and very high quality...Easy to replace and repeat!

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.

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

I was very skeptical, as I usually use Dow membranes, and they claim to be identical in performance at a fraction of the cost but these membranes have far exceeded expectations. My tds in is about 110 and tds out is reading 0 so it has nearly a 100% rejection rate and is producing 8 gal of water an hour, that’s 192 gal per day. I am running it at 100psi and the water is probably about 60F. With the Dow membrane having the same rejection rate but only produced about 120 gpd when new. It is noticeably faster which also means less water wasted.

Less than 3 months old and it’s not filtering anymore. Definitely never was a “100 gal a day” like advertised. I have decades of experience with RO systems and know what a 100 gpd filter should produce. This is not even close to that rating. Yes, pre filters have been changed so it’s not a problem with that. This is low quality product.

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.

Buena membrana

Ottimo

Sehr zufrieden 😀👍

Great replacement for the R.O Buddy membrane! Although I asked the question if it would fit the R.O. Buddy and got a response from the supplier of no it will not I decided to purchase anyway because of the price and man am I glad I did! This baby is identical!! My TDS is now back to 0! will definitely buy it again at this price!