Don’t leave on a great dive vacation without carrying spares in your save-a-dive-kit. Scubapro Balanced Power Inflator (BPI) mechanism: Scubapro’s BPI provides a high inflation speed, especially at depth. Inflator has differently shaped inflation and purge buttons for easy use even in extremely low light or murky water conditions. The inflator is also equipped with a rapid pull dump mechanism with cable pull for easy deflation of the air bladder. Handy save-a-dive-kit item.