Fluval Sea SP4 Sump Pump delivers outstanding; reliable water flow to sump-equipped marine systems. Rugged and certified for marine use; Fluval Sea Sump Pumps have a wear resistant impeller shaft and bearings no exposed metal components for long life. This robust pump features Smart Pump Technology with an integrated electronic circuit board to monitor the pump's performance. Energy-efficient and magnetically-driven pump runs cool and quiet; and can be plumbed in or out of a sump. Includes barbed hose fittings for quick installation.