Johnson Pump Aqua Void Ultima Combo Bilge Pump With its industry-first quick-change motor connection and new reinforced click-in basket, this bilge pump simplifies cleaning and installation, and its convenient and efficient. Its enhanced motor ensures reliability and performance in any condition. Experience worry-free boating with Aqua Void. This pump is combined with the non-clogging electronic Ultima Switch for automatic operation. The electronic automatic Ultima Switch uses the patented Mirus