Brasscraft Cssc45R24 P Safety Plus Gas Appliance 5/8" Od Connector With 1/2" Mip Efv x 1/2" Fip x 24" 1/2 In. ID (5/8 In. OD) x 24 In. corrugated stainless steel with corrosion resistant coating Safety PLUS Excess Flow Valve helps protect against gas fires and explosions - 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