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Review on 2-Pack Membrane Solutions Reverse Osmosis Membrane 50 GPD 1.8"x12" Water Filter Replacement for Under Sink RO Drinking Water Purifier System by Sarah Wilson

Revainrating 5 out of 5

Best Value for Kitchen & Bathroom Sanitaryware

I'm running a pair of 50 GPD reverse osmosis membranes in parallel on a modified Watts Zero Waste system. I've used other inexpensive diaphragms but they didn't last very long before restricting flow enough to break my pump. I've been using Watts membranes for about a year and they still flowed well, but the TDS slowly increased to around 18. Just pop them in and they started out at around 300 TDS, which is fine. I ran 5 gallons through them and the TDS dropped to 6 on one and 8 on the other. So far, so good.

Pros
  • 💧MATERIAL SAFETY: MS (RO) reverse osmosis membranes are made from 100% food grade thin film composite (TFC) for maximum cleaning performance with high permeate flux tested by an independent third party lab. NSF/ANSI 58 compliant site for safe and clean drinking water.
Cons
  • Weak Set