BrassCraft CSSD114R-72 X Gas Appliance Connector 3/8 In. ID (1/2 In. OD) x 72 In. corrugated stainless steel with corrosion resistant coating Safety+PLUS Excess Flow Valve helps protect against gas fires and explosions - 3/8 In. Female Flare or 1/2 In. MIP 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