Spectre Performance 7812 Magna-Kool 1.75"/1.50" Radiator Hose Adapter/Insert Radiator hose adapter kit Replacement hose end for magna-kool heater hoses Includes (1) 3/4 In. rubber hose end, (1) 5/8 In. adapter insert, (2) stainless steel hose clamps Made from high quality material