A service valve for a refrigerant system comprising {TAIL ~ a valve body} and {HEAD ~ a system port} 
A service valve for a refrigerant system comprising { TAIL ~ a valve body } and { HEAD ~ a system port }
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD