XS Scuba Deluxe Cylinder Equalizer with Braided HP HoseThe safe and easy way to transfer gas from one cylinder to another. Great for filling pony bottles. Both ends can be used on K valves as well as 200 bar and 300 bar DIN valves. Simply unthread the yoke adapter to expose the DIN connector. It has a large 2. 75 in (69. 8 mm) diameter, steel case gauge which provides dual scale psi and bar. The large, stainless steel bleed screw is replaceable. For use with up to 40% oxygen premixed. Components: Gauge (p