I am replacing a 30+ year old shower valve as part of a master bath remodel. The existing shower valve has 1/2" NPT female ports (qty 4), with one port capped. The new valve has 1/2" NPT male connections (qty 3). I have these fittings in my possession:
I'm just wondering if these are acceptable for this application.
which do not have the nut and gasket. Are they both allowed? Is one better than the other?
I'm in Gwinnett County Georgia, USA.