4-channel pump head, for pump drive Hei-FLOW 01, 1 unit(s)4 channel pump head, for pump drive Hei FLOW 01 With automatic hose anchoring. For use with up to four hose cassettes, with snap lock for easy insertion even during operation Low pulsation is ensured by eight rollers For two stopper hoses with a wall thickness of 0. 9 mm Hose outer diameters of between 0. 2 mm and 2. 8 mm are freely selectable To feed and convey different volumes, hoses of different diameters can be inserted into the hose cassette