The Automatic Priming Pump makes it fast and easy to prime your water filters before first use. In about 90 seconds, it prepares your filters without needing a faucet connection or dealing with splashing. Simply insert the filter, press a button, and the pump does the work. It is compatible with the BOROUX Foundation® Filter, BOROUX Proactive® Fluoride Filter, Black Berkey® Replacement Elements, and Phoenix Gravity New Millennium Edition Filter Elements. On a full charge, the unit provides at least 10 priming cycles, giving you a convenient, reusable solution for quick and consistent filter setup.