AN-6 (5/16") Black Nylon PTFE (TEFLON) Made Fuel Line:ID: 8 mm (0.315"),OD: 11 mm (0.433"). AN-8 (13/32") Black Nylon PTFE (TEFLON) Made Fuel Line: ID: 9.7mm (0.382"),OD: 12.8mm (0.504"). AN-10 (1/2") Black Nylon PTFE (TEFLON) Made Fuel Line: ID: 12.7mm (0.5"),OD: 15.9mm (0.626").
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