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Fermenter Air locks and Stoppers

Brewing airlocks and stoppers protect your beer from oxygenation. During fermentation an airlock allows CO2 to escape but prevents oxygen and other contaminates from entering the fermenting beer. Proper fitting stoppers are key to this process as well as for aging your beer. 

  • No 8 Drilled Stopper

    No 8 Drilled Stopper

    No. 7 Drilled Rubber Stopper Moulded stopper made of food grade material free from BPA. Stoppers provide an air-tight seal when proper size is used. They stick perfectly to Glass and PET, even when they are wet. Comes with moulded hole for airlock...

    $1.95
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  • No 9.5 Drilled Stopper

    No 9.5 Drilled Stopper

    No. 9.5 Drilled Rubber Stopper Moulded stopper made of food grade material free from BPA. Stoppers provide an air-tight seal when proper size is used. They stick perfectly to Glass and PET, even when they are wet. Comes with moulded hole for...

    $2.65
    Add to Cart
  • No 10.5 Stopper

    No 10.5 Drilled Stopper

    No. 10.5 Drilled Rubber Stopper Moulded stopper made of food grade material free from BPA. Stoppers provide an air-tight seal when proper size is used. They stick perfectly to Glass and PET, even when they are wet. Comes with moulded hole for...

    $2.25
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  • No 11 Drilled Stopper

    No 11 Drilled Stopper

    No. 11 Drilled Rubber Stopper Moulded stopper made of food grade material free from BPA. Stoppers provide an air-tight seal when proper size is used. They stick perfectly to Glass and PET, even when they are wet. Comes with moulded hole for airlock...

    $2.99
    Add to Cart
  • Small Universal Carboy Stopper

    Small Universal Stopper - Drilled

    Small Universal Stopper - Drilled White, rubber bung with longer taper for snugger fit & better seal. Lip prevents bung from falling into carboy. Fits 3, 5, 6 & 6.5-Gal carboys. Fits 3, 5, 6, & 6.5 gallon glass carboys  Made of...

    $0.99
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  • Small Universal Stopper - Solid

    Small Universal Stopper - Solid

    Small Universal Stopper - Solid White, rubber bung with longer taper for snugger fit & better seal. Lip prevents bung from falling into carboy. Fits 3, 5, 6 & 6.5-Gal carboys. Fits 3, 5, 6, & 6.5 gallon glass carboys  Made of...

    $0.99
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  • Medium Carboy Stopper - Drilled

    Medium Carboy Stopper - Drilled

    Medium Carboy Stopper - Drilled These stoppers have a longer taper to help produce a better fit and a snug seal, and a lip which prevents them from falling into your carboy. Both the double bubble and Cylinder Air Locks fit into the drilled hole. Fits...

    $1.60
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  • Medium Carboy Stopper - Solid

    Medium Carboy Stopper - Solid

    Medium Carboy Stopper - Solid These stoppers have a longer taper to help produce a better fit and a snug seal and a lip which prevents them from falling into your carboy.  Fits 3, 5, and 6 gallon PET plastic carboys Top Diameter - 2 3/8" Bottom...

    $1.65
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  • Large Carboy Stopper - Drilled

    Large Carboy Stopper - Drilled

    Large Carboy Stopper - Drilled These stoppers have a longer taper to help produce a better fit and a snug seal, and a lip which prevents them from falling into your carboy. Both the double bubble and Cylinder Air Locks fit into the drilled hole. Fits...

    $2.60
    Add to Cart
  • Large Carboy Stopper - Solid

    Large Carboy Stopper - Solid

    Large Carboy Stopper - Solid These stoppers have a longer taper to help produce a better fit and a snug seal, and a lip which prevents them from falling into your carboy. Both the double bubble and Cylinder Air Locks fit into the drilled hole. Fits 15...

    $2.60
    Add to Cart