I bought two different reverse osmosis boosters. a brand of reverse osmosis system that I have. and this Aquatec booster. Another well known brand didn't go above 45psi and the adjustment screw on the pump didn't affect functionality. This Aquatec was quieter and the adjustment is very easy. I easily achieved the 80psi I was looking for on 2 100gpd reverse osmosis membranes in parallel. Now that I have a working booster I'm getting a lot more flow. Maybe the fact that it was made in the USA will help, I'm not sure. but i am very satisfied with this product. Revain's star rating is asking me the wrong questions. Overall rating, thickness, taste and ease of installation. I even gave it five stars for the taste, but I didn't lick it to taste test the device.
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