Allpoints 521028 Pressure Regulator3/4" Nat

nat gas, 3/4" fpt gas in/out, 1/2 psi, 3"-6" wc maxitrol # rv53-66-0002 with vent limiter #12a06, # 26-2265 mainly used in indoor applications to limit the amount of escaped gas in the event of a diaphram failue.