EHEIM universal cleaning brush with 1.6 m long, flexible nylon string for convenient cleaning of pipes and hoses. The nylon string is threaded and slowly pulled through the hose system so that the suspended brush body picks up the dirt particles. The regularly cleaning is important for the optimally and continuously power and a long lifetime of your filter or pump. The three changeable brush heads enables the cleaning of all hose and pipes sizes with on cleaning kit. Suitable for the following hose sizes: 9/12, 12/16, 16/22, 19/27 and 25/34 mm.