TUSA&&';;s Active Purge Assist system is a revolutionary BCJ accessory technology. This pneumatically assisted purge system and newly designed OPEV (Over Pressure Exhaust Valve) offers significantly enhanced flow rates over a standard inflator system, which allows for immediate purge and inflation response. Additionally, the A.P.A. is incredibly streamlined reducing drag and bulkiness. The system is designed for low-maintenance and easy care reducing inflator malfunctions and is standard on select TUSA BCJ&&';;s or available as an add-on replacement accessory. Revolutionary pneumatic assisted purge system for TUSA BCJ&&';;s Increased flow rates (inflate/deflate) for better performance over standard inflators Newly designed OPEV immediately responds to user input Streamlined design reduces drag and bulkiness 2 mounting positions - Over the shoulder or mount underneath arm Achieve perfect buoyancy with precise fingertip controls 3 ways to purge a BCJ - APA pneumatic, standard pull dump, exhaust from oral inflator Designed for low maintenance and easy care decreasing inflator malfunctions Standard on some TUSA BCJ&&';;s or as add-on accessory Add TC-753 A.P.A. Mounting Strap for routing underarm (as shown on BCJ-7000C)