ID: 1/4″. OD: .650″. Length: 50′. For use in fuel feed, vent, return and transfer within enclosed engine compartments. Consequently, can be used for all marine fuels including gasoline, ethanol (up to 85%), diesel, bio-diesel and alcohol-enhanced (CE10) fuels. Braided reinforcement provides excellent flexibility and bend radius. Temperature range is -20� F to 180� F (29� C to 82� C). Our marine fuel feed and vent hose meets or exceeds all requirements of: ISO 7840 Type A1, SAE J1527, and USCG Type A1 compliant, ABYC H24 and H33, NMMA Type Accepted and CE Certified requirements.