Hard water build up was reduced by having our plumber install a valve for these filters on our stove. I believe it also contributed to the performance of our new dishwasher, hard water destroyed our old dishwasher after years of use without these filters. In a house of six I change them about every 4 months which may be too early but I wish our water was softer. We also have a septic system, salt in water softeners destroys septic systems so these filters are a useful alternative.
Filter under the sink Aquaphor Favorit ECO silver
20 Review
NANPU 1 FRL Air Filter Regulator Lubricator Combo With 0-150 Psi Gauge, 5 Micron Brass Element, Poly Bowl & Semi-Auto Drain - Metal Bracket Included
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π§ NANPU 1/2" NPT Compressed Air Filter Regulator Combo Piggyback with Auto Drain, 5 Micron Brass Element, Poly Bowl, Metal Bracket, and 0-150 psi Gauge
18 Review
NANPU Compressed Air Filter Regulator Combo: Brass Element, Semi-Auto Drain, 0-150 Psi Gauge, And More
21 Review