BrassCraft CSSC12R-72 P Gas Appliance Connector 1/2 In. ID (5/8 In. OD) x 72 In. corrugated stainless steel with corrosion resistant coating Safety PLUS Excess Flow Valve helps protect against gas fires and explosions - 3/4 In. MIP (with 1/2 In. FIP tap) connection to gas supply or gas ball valve Approved for indoor and outdoor use. 100% Leak Tested Use with natural, manufactured, mixed and liquefied petroleum (LP or propane) gases and LP gas-air mixtures CSA certified. Designed, machined & assembled in the USA