Note:Due to the special material of PTFE hose, it cannot be installed on ordinary joints and can only be compatible with PTFE joints, otherwise there will be size differences!The cutting Hose End is quite sharp, be careful not to scratch your hands.6AN ID: 5/16". OD: 0.465inch.Length: 3.3 feet.6AN ID: 5/16". OD: 0.465inch.Length: 10 feet.6AN ID: 5/16". OD: 0.465inch.Length: 20 feet.8AN ID: 13/32". OD: 0.543inch.Length: 3.3 feet.8AN ID: 13/32". OD: 0.543inch.Length: 10 feet.8AN ID: 13/32". OD: 0.543inch.Length: 20 feet.10AN ID: 1/2". OD: 0.68inch.Length: 3.3 feet.10AN ID: 1/2". OD: 0.68inch.Length: 10 feet.10AN ID: 1/2". OD: 0.68inch.Length: 20 feet.PTFE fuel line can be used as fuel injection hose, boost line,carb fuel line, ls engine swap fuel line, fuel return line, vapor return line,fuel supply line, etc.Working Temperature Range: -76℉ to 446℉ (-60℃ to 230℃). Max Working Pressure: 2000psi. Bursting Pressure: 6000psi.Applicable Medium: all automotive fuels, lubricants, and coolants.PTFE hose relatively hard, it can't be bend and folding in half. Professional installation is highly recommended.