Designed to transfer glycol-base coolants to and from the heater core, by-pass to the radiator, as well as through other components in the vehicle's coolant system. SAE 20R3EC Class D1 and Class D2 specifications. Resistant to Electrochemical Degradation (ECR)
Unit of Measurement: EA
Molded Heater Hose 20R3EC Class D1 and D2
MEETS OR EXCEEDS SAE 20R3EC CLASS D1 AND D2 SPECIFICATIONS.