Faber High Pressure Steel Cylinders

3442 psi (237 bar) working pressure Phosphatized-cleaned interior O2 cleaned for use with up to 40% pre-blended nitrox Includes self-draining tank boot with round rim Comes standard with Thermo PRO Valve Come in either Hot Dip Galvanized or Gun Metal Gray Hot Dip Galvanized: The most durable corrosion free exterior finish possible.  The process involves submerging the cylinder into molten zinc which then metallurgically bonds to the steel. Gun Metal Gray: Triple protected finish for long lasting durability.  Process includes a zinc galavanization spray followed by an epoxy paint and then a polyurethane top coat.