Precision molded in standard lengths, Dayco's Flex Radiator Hose is designed to replace straight or molded radiator hoses. The knitted reinforcement and synthetic EPDM construction meets SAE J20R4, Class D-2 requirements. This hose is designed to prevent splitting, ballooning, and elongation; and, resists ozone and other detrimental environmental elements, coolants, and temperature variations of -40 Degree F (-40 Degree C) to +257 Degree F (+125 Degree C). The corrugations provide excellent hose flexibility without flattening or collapse.Note: This hose is NOT suitable for fuel or oil transfer. Product Features:The knitted reinforcement and synthetic EPDM construction meets SAE J20R4, Class D-2 requirementsResists ozone and other detrimental environmental elements, coolants, and temperature variations of -40 Degree F (-40 Degree C) to +257 Degree F (+125 Degree C)The corrugations provide excellent hose flexibility without flattening or collapseThis hose is designed to prevent splitting, ballooning, and elongation