The quickest way to bleed a Dometic or BayStar® system and assure a rock-solid steering feel every time! Power Purge systems reduce installation and warranty costs while enhancing the quality of the boat for the end user. A typical manual fill and purge takes the average, experienced installer about 30 minutes per boat - by using Power Purge this can be reduced to 10 minutes or less. Features: Speed, quality, and ease-of-operationExtended portablility for use in the fieldConvenient electrical hook-up to the 12V boat battery