Air Lock Cork - 6 1/2 Drilled Rubber Stopper

Airlock Cork — #6.5 Drilled Rubber Stopper (Bung) 🫧 A classic #6.5 tapered rubber stopper with a center-drilled hole for mounting an airlock (or fitting tubing for a blowoff setup). Designed to seal securely and hold in place during active fermentation. Why it works so well ✅ Drilled through to accept an airlock or tubing Tapered shape seals tight and helps keep the airlock stable Won’t drop through when used with the correct hole size Easy to clean + sanitize with common brewing cleaners/sanitizers Dimensions Top diameter: 50mm (1.97") Bottom diameter: 42mm (1.65") Fits a vessel hole drilled to 1 1/8" diameter Tip: You can also insert tubing directly into the drilled hole to run a simple blowoff line.