Johnson Pump Aqua Void Bilge Pump 12 Volt 500GPH. 3/4" Hose. With its industry-first quick-change motor connection and new reinforced click-in basket, it simplifies cleaning and installation and it's convenient and efficient. Its enhanced motor ensures reliability and performance in any condition. Experience worry-free boating with Aqua Void. Include both a straight and a 90 degree smooth elbow Dura-Port as well as a removable check valve.