This is a Super Pond pump is made by Sunsun, the worlds largest aquarium and pond pump manufacturer. Two year warranty. This unit pumps 5500 litres per hour and has a maximum head of of 5.5 metres. It uses ceramic shaft technology for extra long life and has an extra long flex of 2.4 metres (check other pumps for the flex length). This pump consumes 200 watts of power and is of a very well proven design. This unit has a 24 month back to base warranty. This pump will give you years of great service. We use this pump to power our CPF 280 filters and they seem to be bullet proof. The measurements are 175mm long 133 mm high and 112 mm wide. This is my biggest selling pump, it is very reliable and i have never had one back. Please see my other listings for pumps from 1200 litres to 20,000 litres Questions welcomed.