The Dayco Power Brake Vacuum Hose, designed for use on power brake vacuum hose applications, features a tough outer cover and a braided reinforcement for increased strength and durability. The hose is supplied without couplings and it is recommended that hose clamps be used. This hose meets SAE J1403a, Type L, Class B and DOT FMVSS 106 requirements, and resists temperature extremes of -40˚F (-40˚C) to +257˚F (+125˚C).