The Eheim Set of Cleaning brushes for pump housing contains 3 cleaning brushes for cleaning the pump housing of filters or pumps. The brushes are optimally designed for the size of the holes in the pump housing. The regularly cleaning is important for the optimally and continuously power and a long lifetime of your filter or pump.New: Eheim Set of Cleaning brushes available for all Eheim filter und pump types. Three brushes in one set. This article replaces the articles 400955 and 400957