XS Scuba Worthington Cylinders HP Steel 3442 psi Tank in Daytona Beach, FL

X7 - 7.25" diameter X8 - 8.00" diameter High-strength steel technology More volume in a compact cylinder Standard "Yoke Style" Thermo PRO valve Inlet thread is standard 3/4"-14 NPSM Ultimate weight to capacity ratios Ideal buoyancy characteristics Manufactured to DOT Exemption and Canadian TC Permit The steel cylinders are manufactured at Worthington Cylinder's state of the art facility in Tilbury, Canada. The cylinders are manufactured using the Deep Draw and Ironing (DDI) process. Cylinders start from a circular plate of chrome-moly steel. Multiple draws on a hydraulic press transform the plate into an open ended shell. The shell is then closed, the neck is formed and the threads are machined. The DDI process produces the most consistence wall thickness resulting in the lightest weight, most efficient cylinders. This manufacturing process is what allows us to supply cylinders with the best buoyancy characteristics for scuba diving. During the process of Hot Dip Galvanizing, the exterior of our steel cylinders are submerged into 840-F molten zinc. The process deposits an [removed phone] mil thick zinc barrier to protect against the corrosive ocean environment. This layer of zinc metallurgically bonds to the steel cylinder. It will not chip and wear away like a painted zinc finish. Steel Cylinder Features