1 Set 1/2" NPT Regulator for NG Gas NPT Natural Gas Low Pressure Regulator 5 Water Column Range with Gas Line Pipe Thread Tape - AliExpress
Amazon.com: 1/2'' NPT Gas Regulator, LPG Natural Gas Pressure Regulator Inlet Pressure: 1/2" PSI (3.5KPa) Outlet Pressure: LPG 10" W. C & NG 5" W. C for Gas Pressure Regulator with Gas