XS Scuba's valves are designed and manufactured for long life and heavy use. The Thermo by XS Scuba Modular DIN Valve is no exception. Valve is made of marine grade brass with triple bright chrome plating for long life protection in salt water. Precision machined from high tension brass and chrome plated valve stems for years of service and corrosion free operation. The high-pressure seat is nylon. The modular valve is unique that it can be used to build a manifold valve with the addition of the Thermo by XS Scuba Crossbar with Isolator (see SKU: XSSTSCB). Easy grip soft rubber hand wheel with stainless steel insert ensures long life and large ribs make turning handle easy even when wearing gloves. Valve bonnets are copper crush washer sealed. Valve is equipped with a one-piece safety plug, has a 5/32" hex wrench dip tube for positive retention and 3/4" x 14 NPSM inlet threads which fit nearly all DOT aluminum and modern steel cylinders. All this and more makes this the valve of choice for the serious diver. The valve is available in 3-pressure ratings of 2400, 3000 or 3442 psi (165, 200 or 230 bars) depending on cylinder to be used. Valve is for air use only.