Natural Gum Rubber Bung with Hole for Airlock

To be used with an airlock on a fermenter lid or carboy. Measures 1 5/16″ – Top, 1 1/16″ – Bottom. Size 6 1/2. #6.5 with hole. Note: This is not the rubber bung for the top of your distiller tower.
If you are looking for a rubber bung for your tower see sku# 16652