Features:- Rugged ABS construction, designed for intensive use on board commercial/work boats.- Corrosion and chemical housing resists impacts and hull pounding.- Parabolic chamber design moves water around housing: this helps cool the motor, decreases power consumption and prolongs motor life.- High-efficiency permanent magnet motor utilizes composite brushes and lubricated bearings.- Easy installation: the mounting bracket can be installed in a variety of positions and the pump mounts to the bracket with a click-lock- Feature. Easy maintenance: the powerhead, pump chamber and mounting bracket are detachable for easy cleaning.Specifications: - External dimensions are the same for all 3 models.- ISO 15083 standard requires the following minimum performance,- at a 1 m height :- Boat ≤ 6 m : 600 L/hour.- Boat ≥ 6 m : 900 L/hour.- Boat ≥ 12 m : 1800 L/hour.