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