This is a Quincy 112711-150 air compressor pilot unloader check valve combo. This valve cuts in at 95PSI and cuts out at 125PSI. This valve can be adjusted between 30-40 - PSI. This is a 1/2" compression fitting from the pump, 1/2" Female NPT from the tank, and two 1/8" Female NPT ports.

Specifications:

• Factory Replacement Part
• Material: Machined Brass
• USA MADE
• 1/2" Female NPT Pipe Thread Outlet To Tank
• 1/2" Compression Thread Inlet
• Two 1/8" NPT Female Pipe Thread Ports
• Factory Set At 95 PSI Cut In & 125 PSICut Out Pressure
• Pressure Can Be Adjusted 30-40 PSI Up or Down
• 30 CFM Rating
• Equipped With A Manual Unloader Flip Valve At The Top Of The Unloader