XS Scuba PRO Valve High Pressure Steel 3442 psi XS Scuba PVD Pro Valve XS Scuba PVD Pro Valve Standard Yoke Outlet with Spin-Out DIN Insert Converts to 230 bar (3,336 psi) DIN Outlet 1/4" Hex Key Wrench Removable DIN Insert 3/4" - 14 NPSM Standard Inlet Threads