Brand: NITRA Item: Tubing Operating Temperature: -40 to +160 deg F Material: Ether-based polyurethane Color: Red Inside Diameter: 0.156in Outside Diameter: 1/4in Operating Pressure: 180 psi Working Fluid: Air or inert gas Working Length: 500ft reel UV stabilized: No NITRA pneumatic tubing, ether-based polyurethane, red, 1/4in outside diameter, 0.156in inside diameter, 500ft reel.