This set includes the bestselling oase filtoclear 12000 pressure filter and pondxpert freeflow 8000 pond pump. Br together this pump and filter will power a fish pond holding up to 6,000 litres of water 1,320 gallons. However, if you go on to add additional oxygen into the pump with an air pump of 100lph then the set can be used on ponds sized up to 7,000 litres.this is an exclusive set to pondkeeper that saves you £39.99 on buying the items separately. Br the oase filtoclear is one of the easiest filters to run due to its very straightforward easy clean facility. Br the freeflow 8000 pond pump has been designed to run 24 7 without clogging it can handle dirty water including solid particles up to 8mm in size. It also boasts a state of the art eco motor to ensure low running costs.