Whale Marine - Gulper Grouper 6.5 GPM 24V 3.5A Evacuation Pump with 1"Hose

 
This heavy-duty, single diaphragm pump can run dry without damage and has no impeller to clog or burn. Ideal for fishbox waste to replace a macerator pump. 360° Head rotation for easy installation. Non-choke valves and easy maintenance.