Our #5 Silicone Stoppers are precision-engineered for high-performance sealing in both professional labs and craft setups. Designed to fit openings from 22.5mm (bottom) to 26mm (top), these bungs provide a reliable, airtight fit. The Grab Ring option is a game-changer for technicians and brewers, allowing for effortless removal from tight-fitting glass without the need for prying tools.
Integrated Grab Ring: The extended pull tab offers significant leverage, making it easy to pop the seal even after a vacuum has formed, protecting both the user and the glassware.
Medical-Grade Purity: Crafted in the USA from 100% food-grade silicone that is BPA-free and non-porous. It will not absorb unwanted odors or leach chemicals into your product.
Versatile Configurations: Choose between Solid for airtight aging/storage, or Bored (with 25/64" hole) to accommodate standard airlocks for active fermentation.
Sanitization Ready: Extremely durable and heat-resistant, these stoppers can be repeatedly sterilized and reused across multiple batches without degrading or losing their shape.
