Review on NANPU 3/8" NPT Compressed Air Filter Regulator Combo Piggyback, 5 Micron Brass Element, Poly Bowl, Semi-Auto Drain, Metal Bracket, 0-150 Psi Gauge by Aaron Wood

I really like the auto drain function, which I didn't consider when placing on wall. Only had a corner of garage and top of wall for compressor, lead-in hose and filter to work with. But it's been working great ever since. Wall bracket makes mounting quick and easy. Adjusting knob is a good size, so a lot easier to change pressures without stripping inside catch.