Bottletop filters are polystyrene funnels with integrally welded filter membranes designed for direct filtration into sterile glass media bottles. They thread securely onto bottles with 45-mm neck. Side arms with quick-disconnect tubing adapters simplify vacuum line attachment.

Nalgene® Bottletop Filters are polystyrene funnels with integrally welded filter membranes designed for direct filtration into sterile glass media bottles. They thread securely onto bottles with 45-mm neck. Side arms with quick-disconnect tubing adapters simplify vacuum line attachment.

Warning: This product is not approved or intended for, and should not be used for medical, clinical, surgical or other patient oriented applications.