Metalsub Cylinder Bracket With the Metalsub cylinder Quick Release System, cylinders can quickly be attached and detached. One half of the system is permanently attached to the CCR can (or primary tank), the other half is attached to the cylinder. For Public Safety Divers the Pony Bottle Bracket provides a solid and durable system that can quickly be released underwater with ease. Both halves can be attached using two stainless steel clamps or a tank band. Sold individually, each full kit is enough to mount one cylinder. By pressing with the thumb of a spring loaded pin, the bottles are released. The plates are equipped with rubber strips for a better grip on the CCR can and cylinders. The metal is coated with a seawater-resistant coating. The “short” version was originally designed to be used with our mini/ travel CCR canister and was necessary to allow the cylinders to sit slightly higher to avoid the valves from contacting before the bottom of the can. They are also a light weight version (about 20% lighter than the standard size). Now featuring the “opposite” orientation so that both release buttons will be easily accessible from the rear of the rebreather! Public Safety Divers: use the Opposite orientation for mount the pony bottle on the diver's left side. Approx Height Approx Width Approx Weight STD Female 255 mm10.0625 inches 70 mm2.75 inches 290 g10.4 oz STD Male 200 mm7.875 inches 70 mm2.75 inches 265 g9.4 oz Short Female 215 mm8.46 inches 70 mm2.75 inches 245 g8.6 oz Short Male 160 mm6.3 inches 70 mm2.75 inches 200 g7.2 oz