Old Part Numbers: CW210000AV, EV1WSICondor unloader valve for MDR21130 and other popular pressure switches.  Replace this valve if air constantly leaks from the valve while the unit is running, or if you don't hear a burst of air from the valve...

Old Part Numbers: ST016500AV

Note: Also used on models WL650103, WL651900, WL650703, WL651004, WL651000AJ.Specifications5/8" long

Note: order this item for models 4B246C and for pumps that have a threaded oil breather!

Cap for Oil Drain Extension