Allpoints 521044 Pressure Regulator1-1/2" Nat

nat gas, 1-1/2" fpt gas in/out, 1 psi, 3"-6" wc, vent limiter #12a34 only for use under 14"wc, for pressure over 14"wc must be vented to outdoors. maxitrol # rv81-1212-0017 4500 cfh.