This air compressor check valves is made of , which can withstand use.<br> Features the brass material, which has high durability, not easy to deform. Fine workmanship, ensures practicality.<br> Features<br> -Color:Golden<br> -Material:Brass<br> -Size:4.00X3.80X3.50cm/1.57X1.49X1.38in<br> Connector: 14mm, 16mm<br> - Made of high strength brass with good corrosion resistance, not easy to break or crack.<br> - Perfect replacement for old or damaged check valves in air compressors.<br> - Before replacing the valves, make sure the compressor is fully closed and the pressure is fully released.<br> - Quick and easy installation with threaded ends without any tools.<br> - Air compressor check valves with external thread is used for pipeline connection, air pressure tank and compressor piston pump respectively.<br> Package list: 1 Compressor Check Valves