Quiet, energy-efficient, multi-function pumps The Impulse 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 (stainless steel on the Impulse 400), and an adjustable flow rate. Multi-size hose adapter fittings and suction cups are included. Features Wet/Submerged Application Impulse Pumps can be used for a variety of fully submerged applications including aquariums, sumps, and outdoor or indoor ponds. Dry/Inline Application They can also be used for dry or inline applications including skimmers, reactors, and sumps. Use one of the included multi-size hose adapter fittings for quick and easy connections. Flow Regulation Use flow regulation to adjust the flow to the ideal rate for your particular application. Adjustments up to 400, 600, and 800 GPH respectively. Wear-Resistant Impeller The Impulse is equipped with a synchronous motor, advanced impeller, and ceramic shaft and bearings. Impulse 400 features a stainless steel impeller Technical Specifications Impulse 400 Impulse 600 Impulse 800 Max Flow Rate 400 GPH / 1.500 l/h Watts 23 – (120 v – 60 Hz) 23 – (230 v – 50 Hz) Amperes 0.43 A / 0,17 A Head Max 6 ft / 1,8 m Cord Length 7.5 ft / 2,28 m Hose Connector 1/2” GAS / 15-20 mm Impeller Shaft Stainless Steel Max Flow Rate 600 GPH / 2.200 l/h Watts 35 – (120 v – 60 Hz) 32 – (230 v – 50 Hz) Amperes 0.65 A / 0,30 A Head Max 6.5 ft / 2 m Cord Length 7.5 ft / 2,28 m Hose Connector 3/4” GAS / 21-26 mm Impeller Shaft Ceramic Max Flow Rate 800 GPH / 3.000 l/h Watts 48 – (120 v – 60 Hz) 45 – (230 v – 50 Hz) Amperes 0.43 A / 0,21 A Head Max 9.9 ft / 3 m Cord Length 7.5 ft / 2,28 m Hose Connector 3/4” GAS / 21-26 mm Impeller Shaft Ceramic