1″ WALL OUTLET WITH SHUTOFF VALVE These nylon compression tube fittings work with rigid aluminum tubing to distribute compressed air to workstations around a factory or shop. Their O-ring seals ensure leak-free connections. Fittings include preassembled bodies, nuts, and ferrules for quick installations. FEATURES: Material: Aluminum Size: 1″ Temp Range: -4°F to 140°F Working Pressure: 232 PSI Compatible Pipe Material: Brass; Copper; Iron; Stainless Steel