Feature●Grommets for 15 25,30 and 60 liter fermenter●Use with airlock for fermentation●Perfect for securing airlock during fermentation●Item Package Dimension: 2.9" L x 2.0" W x 0.5" HDescription
Airlock grommet for airlock on homebrew beer mead wine fermenter Lid, inside hole diameter is 9 mm, out site hole diameter is 12.5 mm. Gd: 12.5 mm ID: 9 mm OD: 16.8 mm gw: 2.75 mm the: 8.4 mm.