Deposits accumulate continuously in hoses that are in constant use. However, this is not just an aesthetic problem, it can also reduce the performance of the filter. In addition, filter inlets and outlets are often so firmly connected that cleaning is very difficult. The sera Tube Brush can also be used to clean long tubes, in some cases also including the inlet or outlet tube. To do this, the brush is attached to two-meter-long (78.7 in) tear-resistant cords and drawn through the tube. By moving the brush back and forth several times, the hoses can be cleaned very thoroughly. Three different brushes are included so that all standard hose sizes can be cleaned in an ideal way. Sera Tube Brush+ cleans hoses and rigid tubes thoroughly+ ideal for cleaning filter inlets and outlets as it is particularly flexible+ with different brushes for hoses with an inner diameter of 9 to 18 mm (0.35 to 0.71 in)+ the brushes can be moved back and forth with the 2 m (78.7 in) tear-resistant polyamide co