www.PWMall.com. PWMall-GR-800-Gas-Flo 1 Stage Low Pressure LP-Gas Regulator 1/4 FPT In x 3/8 FPT Out
325-5L-3/4 - Maxitrol 325-5L-3/4 - 3/4" Line Regulator (600,000 BTU)
Amazon.com : Natural Gas Pressure Regulator with 3/4" FNPT Thread, 1/2 PSIG Inlet Pressure and 4" &10" WC Outlet For Grill, NG Regulator for Standby Generator, Construction Heaters, Stove Range Pipe Lines :