Product Description High quality Worthington 120cf (15.3l) HP steel scuba cylinder, includes XS Scuba Pro Convertible valve with Safety Handwheel and octagonal boot. 3442 psi working pressure, 7.25 in. dia. with hot dip galvanized finish. Thermo Pro International valve, XS Scuba Modular Pro valves, Thermo Modular Pro valves, XS Scuba Modular 300 Bar DIN valves & Thermo Modular 300 Bar DIN valves also available.