Brand: NITRA Item: Tubing Operating Temperature: -40 to +160 deg F Material: Ether-based polyurethane Color: Clear blue Inside Diameter: 0.328in Outside Diameter: 1/2in Operating Pressure: 150 psi Working Fluid: Air or inert gas Working Length: 100ft package UV stabilized: No NITRA pneumatic tubing, ether-based polyurethane, clear blue, 1/2in outside diameter, 0.328in inside diameter, 100ft package.