Steritop® Filter Units
Steritop bottle top filter units provide a large filter area for rapid sterile filtration of aqueous fluids into narrow-mouth (33 mm) or wide-mouth (45 mm) bottles. A small tab inside the funnel secures an optional prefilter in-place during filtration. For added protection against contamination, the threads for bottle attachment have been slightly recessed in case the funnel accidentally touches a work surface
Steritop bottle top filter units provide a large filter area for rapid sterile filtration of aqueous fluids into narrow-mouth (33 mm) or wide-mouth (45 mm) bottles. A small tab inside the funnel secures an optional prefilter in-place during filtration. For added protection against contamination, the threads for bottle attachment have been slightly recessed in case the funnel accidentally touches a work surface
Sterility testing using the Steritest™ closed filtration system
This scientific poster includes an overview of the Steritest™ closed filtration system and its use for sterility testing.
What are the Correct Membranes for Your Filtration Needs?
Are you using the correct filtration system for your application? In this video, learn what membrane and pore size best suit your application.
Where science meets sustainability: Driving human progress with greener alternatives
Discover how Merck KGaA, Darmstadt, Germany is helping to combine scientific innovation and environmental stewardship









