This is the XS Scuba Pro Valve Yoke outlet with Spin-out DIN Insert Features: Standard yoke outlet with spin-out DIN insert converts to 230 bar DIN outlet 3/4"-14 NPSM standard inlet threads Clean for pre-blended Nitrox up to 40% oxygen 1.5 handwheel rotations from fully on to fully off Available in 3 service pressures While this tank valve features a standard yoke outlet, you also get a spin-out DIN insert for easy conversion when needed. Compatibility: 3000 PSI (200 Bar): Most common aluminum tanks3300 PSI (230 Bar): High pressure aluminum tanks3442 PSI (240 Bar): High pressure steel tanks p/nVX200-30N-VI (3000 psi)VX200-33N-VI (3300 psi)VX200-34N-VI (3442 psi)