Shields 1300 Water/Heater Hose is fabric reinforced and has an EPDM tube and cover. This hose is primarily used for engine heater hose, heat exchanger, A/C circulation, and drain lines (sink, icebox, shower and livewell). Resistant to mild chemicals, heat, cold, ozone and saltwater. Temperature ranges from -40?F - +212F.ID-3/4", OD-1", Length-50', Working Pressure-50 psi