BrassCraft®'s steel female gas fitting connects a gas connector to an appliance gas inlet or gas supply pipe or gas ball valve. These fittings are manufactured from steel for a seamless, durable design. The flared end of the fitting connects to the gas connector nut. The male end connects to the gas appliance inlet, gas ball valve or gas supply stub out. Fitting is used with 5/8 in OD (15/16-16 thread) gas connectors for appliances with moderate BTU demands such as s a 5 or 6 burner stove, furnace or boiler. BrassCraft® Tube to Pipe Adapter, Series: MAU1, Fitting/Connector: Adapter, 5/8 x 3/4 in Nominal, Flare x FNPT End Style, 1-1/8 in Hex, 1.78 in Length, 1/2 psi Pressure, -40 to 150 deg F, Steel, Zinc Plated, Blue, Import