The flow rate can be easily adjusted via a wired control box Atom Pond Pumps deliver consistent energy saving performance Integral Filter Cage that can easily be removed to fit the hosetail to the inlet Maximum Flow Rate @ 100%: 6000 litres per hour (1320 gallons per hour) Dimensions: 16.5cm long x 9cm wide x 17.5cm high (with hosetail fitted) Minimum Power: 13.5 watts at minimum 30% setting, Manufacturer: Bermuda