This premium Dayco Insulone Heater Hose delivers heated coolant to the heater core with minimal heat loss. The synthetic EPDM rubber compounds and spiral reinforcement gives this hose excellent burst strength, heat resistance, and compatibility with all common coolants and coolant additives. A special compound used in the insulating layer provides an added measure of protection against heat loss. Built with a black cover, this hose is similar to SAE 20R3, Class D-2 with a temperature range of -40 Degree F (-40 Degree C) to +257 Degree F (+125 Degree C). Note: NOT suitable for fuel or oil transfer. Product Features:Synthetic EPDM rubber compounds and spiral reinforcement provides excellent burst strength and heat resistanceCompatible with all common coolants and coolant additivesInsulating layer provides an added measure of protection against heat lossPerforms well in temperature ranges of -40 Degree F (-40 Degree C) to +257 Degree F (+125 Degree C)
