Maxx Flex 3104300050-F HydroMaxx 4 Bar Heavy Duty Reinforced PVC Lay Flat Discharge and Backwash Hose, 3" Diameter x 50' The pvc tube and the cover of the hose are extruded simultaneously to ensure maximum bonding and high quality. Please note this hose is not measured flat, but when it is round, in "use" Manufactured with a continuous high tensile strength polyester fiber circularly woven to provide reinforcement Formulated with uv protectors, working temperatures - 5 degrees f to 149 degrees f Pool, spa, or pond filling, draining or backwash Discharge and pumping Construction Irrigation Agriculture Mining OIl and gas exploration and extraction PVC tube and cover of the hose extruded simultaneously to ensure maximum bonding and high quality. Manufactured with continuous high tensile strength polyester fiber woven to provide reinforcement Formulated with UV Protectors - Working Temperatures - 5 degrees F to 149 degrees F Resistant to grease, oil &amp; many chemicals and acids. This hose is very strong and it resists twisting &amp; kinking.