Shurflo 13 GPM Macerator Pump The Shurflo Macerator Pump is designed specifically for sanitation waste and fish box evacuations. Features a premium impeller design with the capability to run dry and includes a seamless shell motor with o-ring sealed end bells and a sealed manual turn key. Shurflos unique dual blade and housing construction ensure problem free pumping, providing superior performance in harsh marine environments. Thermally protected and ignition protected. Features Sealed manual t