Product Overview
FerMonsterâ„¢ Lid with Hole
This is a replacement lid that fits the 6 gallon and 7 gallon plastic FerMonster carboys (gasket not included).  This lid has a hole on top that accommodates a medium universal carboy bung (not included).
The Fermonster Lid O-Ring and Medium Drilled Universal Carboy Bung and are compatible with this lid.