Old Part Numbers: CW000800AV, 69DJAAir compressor bleeder (unloader) valve. Replace if broken, but replace the check valve if this constantly leaks after the compressor shuts off.

Adjustable air regulator assembly for air compressor units that have a 4-port pressure switch (pressure gauge sold separately). 1/4" FPT inlet/outlet, 1/8" FPT port for pressure gauge. If air leaks from the regulator, or when you turn the knob it doesn't...