The Aquaforce sets high performance and efficiency benchmarks in flow rates and head heights. The range of Aquaforce filter and waterfall pumps have been developed to be tough, trouble free and efficient. The striking new Hozelock AquaForce 1000 comes complete with an exclusive Wildlife Protection System, which protects small fish, newts and frogs from accessing the pump. Self Cooling System ,the motors feature a water-cooling system, which ensures that the pumps are kept at a constant temperature and reduce the risk of overheating. Ceramic Bearings maximise pump life and along with thrust washers ensure the motors are ultra reliable. Conical Impeller, maximises performance. Carry Handle, integral carrying handle for easy lifting in and out of the pond. Mains Power - 10 meter cable, come without Mains plug that can easily be wired to a UK 3 Pin plug or EU 2 pin plug or simply wire into a mains power junction. Pond water is drawn in through the cage grill which filters out coarse solids up to 6mm/10mm in size (dependent on model). Best possible protection for pond fish, preventing them from accessing the pump. The Aquaforce has a considerably increased cage surface area, which allows the maximum amount of waste to be collected and pumped to the filter system. It also means that the cage is far less likely to clog, which will save you from constant cleaning.