Brasscraft Cssc94R48 x Safety Plus Gas 5/8" Od Connector With 5/8" Female Flare Efv x 1/2" Mip x 48" 1/2 in. Id (5/8 in. Od) x 48 in. Corrugated stainless steel with corrosion resistant coating Safety plus excess flow valve helps protect against gas fires and explosions - 5/8 in. Female flare 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