For in-line removal of particles or microbial contaminants from liquids or gases, as in clarification or cold sterilization. Holds 47- or 50-mm membrane. Removable tubing connectors on both ends fit 3/8-in. (9.5-mm) I.D. tubing. Provided with attachable Luer-Lok* fitting to permit use with syringe. Holder can be used as an aseptic filling bell. Replacement o-rings and fittings available separately