Dayco 87778 Heater Hose Made with a tough EPDM rubber compound this hose is made to resist the detrimental effects of heat, ozone and impacts from road debris This hose meets SAE J20R4, Class D1 and SAE J1684 Type EC specifications Highly resistant to electro-chemical degradation and premature stress cracking of the tube The knitted polyester reinforcement provides high burst strength and resists degradation from temperature extremes and moisture Limited Three Year Warranty