I tested my water before and after using the filter. Surprisingly, my tap water wasn't as bad as I thought it was. Left lane before, right lane after. There wasn't much improvement. So I wasn't very impressed with the product. As the description says, TDS will still be higher because it's a mineral filter. But with all other stains I didn't notice any difference when I tested it, so I returned it.
NANPU Compressed Air Filter Regulator Combo: Brass Element, Semi-Auto Drain, 0-150 Psi Gauge, And More
21 Review
NANPU Air Drying System With Double Filters And Pressure Regulator Combo For Clean And Controlled Air Supply
18 Review
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 DFR-02 1/4" NPT Air Drying System - Double Air Filters, Air Pressure Regulator Combo - Semi-Auto Drain, Poly Bowl
20 Review