| AH
= Standard Aluminum head comes with 1/2" and 3/4" NPT process thread
and 1/2" or 3/4" NPT conduit inlet PH= PVC head same
style as AH CH= Cast iron head SH=
Stainless steel head 316SS NH= Nylon heads PH=
Polypropylene heads Height=3.6" Width=3.8" Dia.=3.2" Call
for other fittings sizes | 
