Convenience of a bottle top filter with the ability to re-use the filter housingAone GL45 Filtration adaptor AutoclavableSecurely screws onto glass media bottles* with 45 mm neck sizesDeep screw threads attach directly to bottle allowing convenient filling and vacuum filtration without holding filter to bottleMajor components molded of durable, break-resistant, transparent polysulfone (PSF), Stainless steel, PP which is non-toxic, easy-to-clean and exhibits low protein-bindingRemovable sterilization membrane support plate provides maximum flow rate and throughputMolded-in graduationsCover ports accommodate 1/4” i.d. tubing for flushing procedures, sterile venting required membraneCompatible with 1000, 2000, 5000 & 10000ml bottle