Brand: NITRA Item: Bonded tubing Operating Temperature: -40 to +160 deg F Material: Ether-based polyurethane Color: Black and clear blue Inside Diameter: 0.250in Outside Diameter: Double 3/8in Operating Pressure: 150 psi Working Fluid: Air or inert gas Working Length: 50ft package NITRA pneumatic bonded tubing, ether-based polyurethane, black and clear blue, double 3/8in outside diameter, 0.250in inside diameter, 50ft package.