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WGK10-25

Combi fermentation and must cap size 4a

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Combi fermentation cap for glass balloons with a volume of 10 to 25 liters

Combi fermentation and must cap 10-25

Product Info

The Combi fermentation cap is a silicone cap with 2 closable openings to close fermentation bottles / glass balloons. Fits PET bottles with a narrow opening and glass balloons with a capacity of 10 to 25 liters.

Several applications possible:

  • for setting up a single airlock
  • for placing a fermentation bung on one opening and a ventilation hose on the other opening
  • for a fermentation bung and a stir stick
  • for a fermentation bung and a thermometer
  • or a fermentation bung and a stick with which a hop bag can be used for dry hops
  • after fermentation: to put a stainless steel filling pipe on one opening and to use the other opening to
  • blow the filling pipe



  • made of flexible silicone
  • hermetic sealing
  • Alternative for a plug with a hole
  • Fermentation bottle can be moved without removing the airlock; simply remove the plug from the second opening


PU: 1 Pice