Fluval Sea Sump Pumps have been engineered to deliver powerful flow rates at various head heights to ensure excellent water flow for sump equipped marine systems. These high quality energy efficient magnetic drive units can be plumbed in or out of a sump. Rugged and certified for marine use, these robust pumps deliver energy efficient quality. Fluval pumps run at a relatively cool temperature to avoid affecting the water temperature of the tank, whether running internally or externally. The Fluval Sea Sump Pumps are electrically certified for Marine use.