I have been using 20 micron sump filters for many years and decided to try these 5 micron filters but was a little concerned that the water pressure and flow rate would drop too much. Guess what? Not at all, since I have a water pressure gauge at the outlet of the line that I can constantly monitor. With 20 micron filters I had a pressure of 68psi and after installing a 5 micron filter my pressure was 0.68psi. No changes! So I'm sticking with these for now, highly recommend!
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