Product Name: Stainless Steel Quick Release Couplings Quick Connect Couplings Sh, pH Type Model NO.: SH, PH, SM, PM, SF, PF Material: Stainless Steel Work Temperature: -20 - +80 Brand: Allmarine Usage: Air transport Screwdriver, Impact Wrench, Air Drill, Grinding Machinery, Air Compressor, Air Line Type: Quick Connector Number of Cylinders: None Customized: Customized Trademark: ALLMARINE Transport Package: Box Specification: 1/4'' to 1'' Origin: China Product Description Quick CouplingA general purpose coupling which can close at either end of the connection.It's a convenient, compact oupling set which connects and disconnects easily, providing dependable serive for fluid transfer of hydraulic, penumatic, and vacuum systems.The flow side coupling has a floating ball valve which will automatically stop the flow of liquid or gas when the coupling is disconnected.Specification