The product is a set of two high-temperature water lines made of stainless steel, with a length of 36 inches and swivel brass ends for flexible use. Manufactured by Pro Hydronic Specialties in the United States, these durable and reliable fittings are ideal for industrial and commercial plumbing applications requiring high-quality materials and craftsmanship. Perfect for connecting water lines with ease and versatility, these stainless steel flex lines offer a secure and efficient solution for various plumbing needs.these are nice max temp 212 F. Brass swivel ends 1”. Length 36” use for gas air or water very nice part # hss336msms made by pro hydronic specialties you get two hoses also these can be used for hydraulic lines