Description This air compressor check valves is made of premium material, which can withstand long-lasting use. Features the brass material, which has high durability, not easy to deform. Fine workmanship, ensures practicality. Features -Color:Golden -Material:Brass -Size:4.00X4.00X3.50cm/1.57X1.57X1.38in Connector: 10mm, 14mm, 16mm - Made of high strength brass with good corrosion resistance, not easy to break or crack. - Perfect replacement for old or damaged check valves in air compressors. - Before replacing the valves, make sure the compressor is fully closed and the pressure is fully released. - Quick and easy installation with threaded ends without any tools. - Air compressor check valves with external thread is used for pipeline connection, air pressure tank and compressor piston pump respectively. Made of high strength brass with good corrosion resistance, not easy to break or crack.|Perfect replacement for old or damaged check valves in air compressors.|Before replacing the valves, make sure the compressor is fully closed and the pressure is fully released.|Quick and easy installation with threaded ends without any tools.|Air compressor check valves with external thread is used for pipeline connection, air pressure tank and compressor piston pump respectively. Made of high strength brass with good corrosion resistance, not easy to break or crack |Perfect replacement for old or damaged check valves in air compressors |Before replacing the valves, make sure the compressor is fully closed and the pressure is fully released