2x 5 litre Fermentation Brewing Buckets Including pre-bored lids, grommets and airlocks 2 fermentation vessels for use in beer, wine, mead & cider making The airlock supplied with the bucket and lid fits in the grommet. Ideal if you prefer to ferment your homebrew in brewing buckets rather than demijohns Bored lids avoid the need for bungs as the airlock fits directly into the vessel lid. The buckets are big enough for all 4.5 litre (6 bottle) wine kits