MF 3 and MF 5 filter holders with magnetic closure. Can be operated with one hand. MF 3 is graduated to 300 ml and MF 5 to 500 ml. Supplied with lid kit for aseptic filtrations or with tubing from another flask. Stopper for suction flask, adapter for GL45 thread, manifold or WaterVac pump. Made of polyesthersulfone (PES). Sturdy construction. Autoclavable. For 47 mm filters.