Not for use in fuel or oil transfer applications. Original configurations available to ensure proper fit Designed to transfer glycol-base coolants to and from the heater core, by-pass to the radiator, as well as through other components vehicle. SAE 20R3EC Class D1 and Class D2 specifications. Resistant to Electrochemical Degradation (ECR)Molded Heater Hose Features EPDM tube and cover with synthetic knit reinforcement, and is compatible with most coolants including ethylene glycol- and propylene glycol-based coolants, as well as organic acid modified, long-life coolants. Continental Elite Molded Radiator Hoses are designed to transfer glycol-based coolants to and from the heater core, by-pass to the radiator, as well as through other components in the vehicle’s coolant system. Dayco Molded Heater Hose EPDM Rubber, 3/4 inch Diameter, 48 inch Length, 80417 Find many great new & used options and get the best deals for Continental Ag 64148 Molded Heater Hose 20 R3 Ec Class D1 And D2 at the best online prices at ! Free shipping for many products Resistant to Electrochemical Degradation (ECR). ID Range: 1/4-inches to 1-3/8-inches and includes intersect hose configurations. EPDM tube and cover with synthetic knit reinforcement Molded Heater Hose Continental Belts And Hoses 61555 Continental Molded Radiator Hoses Vehicle Specific Coolant Hose Compatible with most coolants including ethylene glycol and propylene glycol-based coolants, as well as organic acid modified, long-life coolants