Continue Shopping Home Products Vial Containment Solutions Stoppers 4031/45 Westar® Select Stoppers for Animal Health 4031/45 Westar® Select Stoppers for Animal Health Learn how 4031/45 components are a perfect Animal Health platforming choice! West’s 4031/45 formulation is incorporated in a wide range of stopper sizes and proven designs in serum and lyophilization applications, making it the perfect Animal Health platforming choice. Feedback Please select a region North America South America Europe Asia - Pacific Remember my region selection and make that my default destination when visiting https://www.westpharma.com/ Confirm

Continue Shopping Home Products Vial Containment Solutions Seals West Spectra™ Seals West Spectra™ Seals A drug product differentiation solution West Spectra™ is the proprietary printing and embossing/debossing technology that gives drug manufacturers and end users multiple layers of protection by providing point-of-use instructions, product authentication and counterfeiting deterrence. Buy Now Overview Product Attributes Downloadable Resources Related Products Overview Flip-Off Spectra Seal technology was designed to combat drug counterfeiting and keep supply chains safe with overt messaging. Spectra seals can also be used to increase brand recognition using visual product identification: Vial contents, product or brand name Dosage or strength of drug Cautionary statements and storage instructions Product Attributes Downloadable Resources Flip-Off® Seal Information Sheet Flip-Off Seal Brochure Related Products Vials Stoppers Flip Off® and West Spectra™ are trademarks or registered trademarks of West Pharmaceutical Services, Inc., in the United States and other jurisdictions. PRODUCTS Vial Containment Solutions Prefillable Systems Self-Injection Platforms Cartridge Systems And Components Reconstitution & Transfer Systems Specialty Components Quality Enhancements SERVICES Analytical Services West Contract Manufacturing Integrated Solutions CHALLENGES Reducing Time To Market Reducing Total Cost Of Ownership Packaging Solutions For Sensitive Molecules Single Source Solution SUPPORT Coronavirus Update Knowledge Center Get A Product Recommendation Fill-Finish Support Services Quality Support Regulatory Support Contact Us Recent Press Releases West To Participate In Upcoming Investor Conferences West Announces Third-Quarter 2021 Results And Declares Fourth-Quarter 2021 Dividend West'S NovaGuard® SA Pro Safety System Recognized For Best Technologies Innovation At INTERPHEX All Press Releases Email Subscriptions Partners Legal Notices Imprint UK Tax Strategy Terms & Conditions Privacy Policy DeltaCube Terms Of Service ©2021 West Pharmaceutical Services, Inc.®All Rights Reserved. Feedback