Bung Demijohn Airlock Rubber Cork - Homebrew pre-drilled ready for your Bubbler
1x Rubber bung for demijohns. Pre-drilled ready to take your airlock. Standard Glass Demijohn Size Top - 30mm Base - 26mm NB: This Bung has a hole - If you want an undrilled bung, see our other listing for Solid Bungs