Unloader Valve - YES (Multiposition) On/Off Switch - YES OEM Model 4-port (1/4" FPT) Replace the pressure switch if the unit doesn't cut on or off at the designated pressure the unit is set for. If the unloader valve is leaking on the side (or...

Old Part Numbers: 69DCAUnloader valve used on many Furnas/Hubbell brand air compressor pressure switches; includes the unloader valve with compression nut and sleeve, and screw. Replace this part if it leaks while the unit is running. If this part leaks...

Old Part Numbers: SRV187150, SRV187-1/8Air compressor safety valve, 150 PSI, 1/8" male NPT. If your valve leaks below the pressure listed on the side of the valve, replace this vital safety feature.