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20mm NovaPure Ready-to-Use Chlorobutyl 4432/50 Lyophilization Stoppers

Qty. 500 stoppers/bag

NovaPure™ lyophilization stoppers made from 4432/50 a premium quality chlorobutyl elastomer and laminated with FluroTec™ barrier film to help reduce particulate, limit drug interaction with the elastomer and reduce leachables. These components are provided ready to use, sterilized and 100% vision inspected via our Envision™ inspection process. This stopper configuration can be used with European and American Blowback designed vials. West item number: 19700311

Max limit = 5
20mm NovaPure Ready-to-Use Chlorobutyl 4432/50 Lyophilization Stoppers

In a quantity of 500 pieces per bag, ideal for small-volume filling of lyophilized or dry powered products. Choose these stoppers if you need a sterile lyophilization stopper in a chlorobutyl formulation. Ready Pack™ components are suitable for small quantity filling of high-value drugs and meet regulatory requirements from research and development through commercial scales.

500 pieces per bag. 1 bag per carton

Packaging Assembly Illustration

West’s comprehensive Integrated Solutions Program offers expert testing to support drug product containment systems throughout the development process.  Our technical expertise for pharmaceutical packaging includes vials, stoppers and seals, with an in-depth understanding of regulations and market requirements, including USP <1207>.  A dedicated Project Management team will help to identify key stakeholders to provide consultation and the creation of a customized study design. 

Product is registered trademark of West Pharmaceutical Inc.