When we bought the house I inherited a reverse osmosis system and I am new to reverse osmosis. Our system was assembled by a local shop. Many of these membranes cost $40 or $50. are they better I have no idea. All I can tell you is that our water tastes better and the flow rate has increased. I bought cheaper to see if I really want to keep the system. I think I will. We have a sink faucet and it powers our fridge with water/ice maker so we don't need a very small and very expensive water filter for the fridge. I would buy this filter again.
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