DESCRIPTION 4500psi Tank Valve with Dual High Pressure Gauge, one gauge shows the pressure inside the tank Constant air valve/air fill station with black color M18x1.5 male Inlet thread 50cm high pressure charging hose Tank ON/OFF valve Comes with safety burst valve Fit for high pressure cylinder Carbon Fiber Tank with x 1.5 thread Thread of the gauge is 7/16 inch-20UNF, the same as the mini scuba pressure gauge. If you want to replace it, need to install it in the tank and use a 24mm socket wrench, that be much easier. Used as spare parts for PCP Specifications: Material: Stainless steel+copper Color: Red+Silver Quantity: 1 Pcs Tube diameter: 6mm Pipe pressure: : 1600bar/: 630bar Package Contents: 1 x adapter Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.