O2ptima CM Scooter Ring

Simply thread this scooter ring through the center of the strap that your O2 cylinder attaches to, with the bolt snap hook facing your body and the scooter ring on the outside of the unit. When donning your gear, attach the bolt snap hook to the standard DPV ring on your harness. It is now much easier to attach your DPV to the new scooter ring when using your DPV with onboard O2. This ring not only makes it easier to attach the DPV, but also helps to keep the unit in place, preventing it from lifting up during dives.