Twin sets come complete with your choice of isolation manifold, stainless steel bands with hardware, and self-draining tank boots. GUN METAL GRAY Finish; this triple-protected finish provides long-lasting durability. The process includes a zinc galvanizing spray, followed by an epoxy paint and then a top coat of polyurethane. The result is a beautiful cosmetic finish. FABER STEEL CYLINDERS HP models Gun Metal Gray finish DOT & TC approved Includes self-draining tank boots ISOLATION MANIFOLD Thermo Isolation Manifold - DIN DIN - Dedicated 300 bar Center-to-center distance: 215 mm (8.46 in) +/- 5 mm (0.2 in) 3/4"-14 NPSM standard inlet threads High gas flow for optimum regulator performance On/Off seat built from high strength brass with nylon seat and PTFE plated for years of smooth operation One-piece safety assembly protected within the body of the valve Traditional copper crush washer sealed bonnet Modular access plugs (R/L) included for use as single valves Screw-in dip tube with hex tighten feature Meets the requirements of CGA V9-2009 standards Available in 2 service pressures Manifold Assembly Instructions Assembling Twin Cylinders HIGHLAND STEEL BANDS 304 stainless with all hardware included All bands are 2.5" wide