Brasscraft CSSD54-72 Gas Dryer and Water Heater Flex-Lines, 36.50In. x 2.00In. x 1.00In Corrosion resistant coating protects from exposure to harsh cleaning and plumbing repair products Stainless steel construction Ranges, water heaters and cooktops up to 60, 500 btu 100-Percent leak tested Approved for lp (propane) and natural gas