Review on 💧 Enhance Your Water Filtration with the iSpring MC7 Membrane Replacement Cartridge by Adam Nikolz

Excellent membrane! Buy 50, not 75 GPD. See my story below about 75 GPD. I bought the 75 GPD membrane to replace the 50 GPD membrane from my original Ispring reverse osmosis system, thinking it would give higher flow. The original 50GPD system showed 20-40ppm (ppm) for my water for about 8 months (good) and then went over 50ppm. The 75 GPD replacement membrane never dropped below 70ppm. I contacted Ispring and they were very nice and sent a replacement 75GPD membrane, this membrane is no better than the first 75GPD membrane. Ispring said there was probably a crack in my reverse osmosis system. After dealing with this bad membrane, I decided to buy the 50 GPD membrane that came with the original system. After installing it my water was back to 20-30ppm. I recommend you to buy 50 GPD and not 75, there is something wrong with the 75 GPD design. Also, get a $15 total dissolved solids meter to make sure your RO stays between 0 and 50ppm.