JBL Cleany, Double ended hose brush for hoses with 12 30 mm diameter

For clean hoses on filter and pumps to prevent output reduction caused by soiled hoses Easy to use: push matching end of hose brush through the hose and clean 160 cm long - cleaning of all hoses with 12 to 30 cm internal diameter (fits, for instance, to ALL JBL external filters) Up to 30 % more filter performance, averts a loss in performance: maintains the biological balance in the aquarium Contents: 1 steel helix with small and large cleaning brush at each end, 160 cm long