Brasscraft CSSD54-36 Gas Dryer and Water Heater Flex-Lines Manufactured in China Easy to use Highly durable Corrosion Resistant Coating Protects From Exposure To Harsh Cleaning and Plumbing Repair Products Stainless Steel Construction Ranges, Water Heaters and Cooktops Up To 71,100 Btu 100-Percent Leak Tested Approved For Lp (propane) and Natural Gas