#10 Solid Rubber Stopper – No Hole

Seal Your Fermentation with Confidence Using #10 Solid Rubber Stoppers Our #10 Solid Rubber Stopper is a dependable sealing solution for any fermentation vessel or container where airtight closure is essential. Designed without a hole, this stopper is ideal for times when you need a complete seal—such as during storage, transport, or resting stages of your homebrew. Unlike drilled stoppers made for airlocks or thermowells, this solid version is specifically intended to block all airflow, ensuring your contents stay uncontaminated and protected. Whether you're working with carboys, demijohns, or large fermenters, the #10 fits tightly for reliable performance. Key Features Airtight Seal: Solid plug design prevents any airflow or gas exchange. High-Quality Rubber: Durable, flexible, and reusable without cracking or splitting. Wide Compatibility: Fits standard carboys, fermenters, and lab-style containers with a #10 opening. Simple Application: Insert firmly into the vessel opening fo