Filters securely screw onto glass media bottles with 33 mm or 45 mm neck sizes. Allows direct filtration of liquid into sterile glass media bottles.
Tight and secure thread connection for vacuum filtration, vacuum tubing to be connected onto tubing adapter of side-arm. Graduated. Certificate of quality included in each full case. Lot number, catalogue number, membrane type, pore size and expiration date are printed on filter units for easy identification and lot traceability. | 
