The blagdon pond air pa1r an air pump system designed for creating a healthy environment in smaller ponds pond air was the first specific pond air pump and has proven quiet and reliable in use over many yearsr pond air is designed to operate in the rigours of the pond environment and pumps air up to 100 metres and to 4 6ft deepr includesr comes complete with airliner 1 x 50mm airstoner specificationsr for ponds upto 2500 litresr max output 35lminr max pumping depth 14mr powers 1 x 50mm air