XS SCUBA is the largest distributor of Luxfer aluminum diving cylinders and Thermo valves in the world. Our expertise in cylinders has allowed us to introduce Worthington cylinders to the diving industry. Worthington, the largest steel cylinder manufacturer in the world, now builds the traditional “low pressure” steel cylinders as well as the new X-Series™ cylinder with working pressures of 3,442 psig. Thermo Valves have become the industry standard in reliability and innovation. The Thermo PRO valve with its nitrox-ready, yoke to DIN convertibility makes it the valve of choice for many divers. Check out their site and let us know if you are interested in anything.