The Powerline is the time-proven airway that has been powering Aqua Lung BCs over the years. Increased fill rate; now one of the highest air flows in the industry. Environmentally sealed unit for less maintenance. Integrated hose clips attach to the hose to lower profile and streamline gear. Cable activated rapid exhaust at the top, simply pull down on lower unit to dump air. Inflator includes dust cap cover for QD nipple. Fits all current Aqua Lung BCD's.