Nalgene DS0320-5045 Polysulfone Reusable Bottletop Filter Holder, 500mL Capacity, Fits 45mm Neck

This 500mL polysulfone (PSF) bottletop filter holder with a silicone O-ring and a polypropylene vacuum adapter offers the convenience of a bottletop filter with the cost savings of a reusable filter housing. Screws securely onto glass media bottles with 45mm neck sizes. Accepts 47mm membrane filters. Deep threads screw onto bottle for convenient filling and vacuum filtration without holding filter to bottle. Removable sterilization membrane support plate is designed to provide maximum flow rate and throughput. Vacuum port on lower half of assembly. Molded-in graduations. Polypropylene tubing adapter can be stuffed with cotton for sterile venting during autoclaving. Accepts 1/4 inch to 5/16 inch (6 to 8mm) I.D. vacuum tubing. Non-cytotoxic. Graduated. Autoclavable. Material: polysulfone (PSF) bottletop filter holder with a silicone O-ring and a polypropylene vacuum adapter. Capacity upper chamber: 500mL. Neck diameter: 45mm. Nominal filter area with sterilization filter support plate: 13.3cm. Sold individually. Nalgene #: DS0320-5045.