I haven't tried the high pressure test and it was only in place for a day, but because it's so easy to apply and remove I tried both while I could watch the flow . In fact, it was only a possibility. I was a little apprehensive trying to blow air and couldn't get it through anyway, but it worked properly when plugged in and didn't seem to block water flow in the right direction. It has locking tabs that prevent accidental detachment of the hose. At that time it never occurred to me to test it with air and a piece of hose.
NANPU 1/2" NPT Air Drying System - 5 Micron Particulate Filter, 0.01 Micron Coalescing Filter, Air Pressure Regulator Combo - Semi-Auto Drain, Poly Bowl W/Metal Gauge
23 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
20 Review
NANPU Air Drying System With Double Filters And Pressure Regulator Combo For Clean And Controlled Air Supply
18 Review
🔧 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