Brand: NITRA Item: Tubing Operating Temperature: -40 to +160 deg F Material: Ether-based polyurethane Color: Dark green Inside Diameter: 0.156in Outside Diameter: 1/4in Operating Pressure: 180 psi Working Fluid: Air or inert gas Working Length: 100ft package UV stabilized: Yes NITRA pneumatic tubing, ether-based polyurethane, dark green, 1/4in outside diameter, 0.156in inside diameter, UV stabilized, 100ft package.