100 GPD Reverse Osmosis Membrane, NSF Certified | RO Water Filter Replacement Cartridge, 11.75" x 1.75"

I have been a repeat buyer of this item. It does the job well.

Really good! Ordered as my first replacement as the original that came with the unit stopped lowering hardness. With replacement, GH went down immediately and the process of replacing was easy

Aquarists stay well clear! People replacing drinking membranes, you've no idea what you're actually drinking! I've literally wasted hours and dozens of gallons of water after receiving this, only to find the membrane let's water bypass considerably, chucking out 35-50tds which is not what I get on my water supply. Upon closer inspection, the o-rings on the output of the membrane didn't look right, removed them, only to find very, VERY poorly formed plastic moulding preventing the o-ring sitting properly, hopefully visible in the picture! I'm hoping you don't even have to zoom in too much on the photos, to the right of the notch where the o-ring sits you can see the notch looks strange. Needless to say it's poorly machined plastic, it's like somebody has done a bad job with super glue. Zoom in and you can see the difference compared to another membrane, the green tipped one is perfect, the white tipped one which is this product, not so much. Cheap and poorly formed, thankfully I bought for emergency usage but it'll probably go in the bin now either way. I'm fortunate (or unfortunate!) enough to be using this for an aquarium, I have TDS meters in place at various points and can measure what's coming in and out where. People who are buying these for drinking water are very unlikely to so the same, you'll be drinking things you wouldn't expect to, 35-50tds on my soft supply, which I'd normally expect expecting 1-5 TDS at most. I hate leaving reviews like this and seldom do unless something is that bad. These are complete, and utter trash. The fact the people will be installing them for drinking water too, you can do a lot better is all I can say.

Does not help with ro

Does exactly what it should

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!

Impeccable. Respectez le rinçage d'une heure et le filtre fait son boulot. J'ai vue d'autres avis ou leur qualité de sortie d'eau était mauvaises... probablement au non respect de ce rinçage de départ. Moi la sortie est excellente.

Funziona bene

Ich bin sehr zufrieden mit diesem Produkt. Es ist pünktlich angekommen, genau wie in der Bestellung angegeben, und war sehr gut verpackt. Das Produkt entspricht der Beschreibung und scheint von guter Qualität zu sein. Die Kauferfahrung war sehr gut und ich kann sowohl das Produkt als auch den Verkäufer mit Vertrauen weiterempfehlen. Vielen Dank!

Va muy bien para algunos equipos de osmosis