Continental Contitech Flex-steel hoses are constructed of a single braid of high tensile wire for strength and static conductivity. The Flex-steel hardwall design virtually eliminates kinking and volumetric expansion problems commonly found in similar products. Flex-steel hoses retain their shape even after being run over. All hoses are UL listed, factory coupled and tested with the new lighter, stronger Fuel Grip coupling. All 58" and 34" hoses have 34" NPT male ends. 1" hoses have 1" NPT ends. All 58" and 34" hoses are available with swivels.