This is a Super Pond pump is made by Sunsun, the worlds largest aquarium and pond pump manufacturer it pumps 4500 litres per hour and has a maximum head of of 4.0 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 100 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.