Pressure Switch, 115/150 PSI #0E3AD1

Old Part Numbers: FSPS4115150

Air compressor pressure switch, 115/150 PSI. 4 port (1/4" NPT) manifold with Unloader Valve and On/Off lever.

Replace the pressure switch if the compressor no longer cuts in or cuts out at the designated pressure (PSI), if the unit doesn't turn on or off, or if there is an obvious air leak from the contacts or manifold.

If the small unloader (bleeder) valve on or under your switch leaks constantly AFTER the unit shuts off, don't replace this part, replace the in-tank check valve instead. Most pressure switches have a bleeder valve which has a 1/4" plastic or copper line routing to it.