The Seachem Impulse Multi-Function Pump is a quiet, energy-efficient, multi-function pump. It is ideal for fresh and saltwater aquariums, protein skimmers, indoor fountains, water-cooling and all similar submersible and inline applications which require energy efficient, ultra quiet performance. The Impulse is equipped with a synchronous motor and an advanced impeller, ceramic shaft and bearings, and an adjustable flow rate. Multi-size hose adapter fittings and suction cups are included.