1PCS Thread 90 Degree 3 Port Brass Central Pneumatic Valves Air Compressor Check Valve DIY Home Tools Central pneumatic valve Air check valve Household tools Air compressor parts Solenoid valve Check valve exhaust valve deflation valve Description: The three male thread connectors are respectively for tube connecting, air pressure tank and compressor piston pump. Convenient to install with the thread connecting ends. Material: Cast iron Color: Golden Size:Diameter 16MM Quantity:1pc Size for manual measurement, there may be a 0 to 2 mm error, belongs to the normal phenomenon. And due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package including: 1Pc x Air Compressor Check Valve