1/2" Male Quick-Disconnect Plug Stainless Steel Heavy-Duty Industrial Shape NPT 1/2" Male NPT x 1/2" Industrial Quick-Disconnect Plug 304 Stainless Steel, Max Pressure: 300 psi, Temperature Range: -40F to 250F Heavy-Duty Industrial Quick-Disconnect Fitting Push to Connect, Pull Sleeve Forward to Release, NBR Oring Works with sockets that have shut-off valves