With a 1/8" NPT thread and a 7/16" hex head

Whether you are performing a routine retrofit or a complex system integration

the 5/16" SAE flare size is frequently utilized in R-410A mini-split service ports

extending the life of the power supply cord

Common causes include a failing start capacitor

McDonnell & Miller 318827 O-Ring With a 1/8" NPT threadMaintain the integrity of your low water cut offs with the McDonnell & Miller 318827 O Ring. As a veteran technician, you know that a high pressure steam environment demands precise sealing. This square cut O ring, also recognized as Model 69 114, is the standard replacement part for the Series 69 Low Water Cut Off and E 8 level controls. Transitioning from older gasket styles to this new style O ring ensures a tighter, more reliable seal between the