Fermentation Locks & Stoppers

Your Success is Our Success

By Brad C. - Beverage People with the win - Silicone Breather Bung

"So easy to use and far superior to the water filled ones. You don't get the bubble but you can open and close a carboy with ease. Plus there's no threat of an airlock losing water due to evaporation."

By Thomas N. - Quick, efficient order & pickup

"A quick and efficient order and pickup. Items were in stock and the order was ready in less than the 2 hours quoted (actually something like 45 minutes). Probably faster than going in to the store in person!"

By Kevin K. - The Best Airlock - S-Fermentation Lock

"These airlocks are simple to use and you can see them working right before your eyes, as the gases bubble through the apparatus. Sturdy and they fit all sizes of the tapered rubber stoppers."

S-Fermentation Lock
S-Fermentation Lock3
Average rating:
$1.79

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3 piece Fermentation AirLock$1.79

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Solid Stopper - #000/ fits drilled stopper hole$0.53

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Solid Stopper #2 - 11 mm to 20 mm taper$0.80

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Drilled Stopper #2 - 11 mm to 20 mm taper
Drilled Stopper #2 - 11 mm to 20 mm taper1
Average rating:
$0.62

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Solid Stopper #5 - 23 mm to 28 mm taper$1.13

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Drilled Stopper #5 - 23 mm to 28 mm taper$1.34

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Solid Stopper #5.5 - 22 mm to 29 mm taper$1.34

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Drilled Stopper #5.5 - 22 mm to 29 mm taper$1.34

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Solid Stopper #6 - 21 mm to 31 mm taper$1.61

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Drilled Stopper #6 - 21 mm to 31 mm taper
Drilled Stopper #6 - 21 mm to 31 mm taper2
Average rating:
$1.34

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Solid Stopper #6.5 - 26 mm to 33 mm taper$1.79

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Drilled Stopper #6.5 - 26 mm to 33 mm taper
Drilled Stopper #6.5 - 26 mm to 33 mm taper2
Average rating:
$1.79

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Silicone Solid Stopper - #6.5 - 7 - Fits Glass Carboys$2.25

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Solid Stopper #7 - 30 mm to 36 mm taper$1.79

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Drilled Stopper #7 - 30 mm to 36 mm taper$1.70

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Tapered Silicone Stopper - Size #7 - Breather bung with 5 holes$10.13

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Silicone Solid Stopper #8 - 33 mm to 40 mm taper$5.85

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Drilled Stopper #8 - 33 mm to 40 mm taper$2.69

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Drilled Stopper #8.5 - 37 mm to 42 mm taper$3.32

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Silicone Breather Bungs #9 - 37 mm to 43 mm taper$13.73

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Drilled Stopper #9 - 37 mm to 45 mm taper$2.93

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Solid Stopper #9 - 37 mm to 45 mm taper$2.93

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Silicone Solid Stopper #9 - 32 mm to 45 mm taper$7.43

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Drilled Stopper #9.5 - 38 mm to 45 mm taper$3.83

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Solid Stopper #10 - 41 mm to 49 mm taper
Solid Stopper #10 - 41 mm to 49 mm taper1
Average rating:
$3.15

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Drilled Stopper #10 - 41 mm to 49 mm taper
Drilled Stopper #10 - 41 mm to 49 mm taper1
Average rating:
$2.93

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Solid Stopper #10.5 - 45 mm to 51 mm taper$4.49

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Drilled Stopper #10.5 - 45 mm to 51 mm taper$4.49

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Solid Stopper #11 - 45 mm to 54 mm taper$3.59

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Drilled Stopper #11 - 45 mm to 54 mm taper$3.59

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Tapered Silicone Stopper - Size #10 - Breather bung- vent
Tapered Silicone Stopper - Size #10 - Breather bung- vent1
Average rating:
$13.73

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Tapered Silicone Barrel Bung Stopper - Size #11 - Breather$11.03

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Silicone Super Grip Solid Barrel Bung$7.65

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Drilled Stopper - #11.5$6.53

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CLOSEOUT - Solid Stopper #12 - 54 mm to 63 mm taper$3.83

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Drilled Stopper #12 - 54 mm to 63 mm taper$6.53

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Solid Stopper #13 - 58 mm to 65 mm taper$4.95

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Drilled Stopper #13 - 58 mm to 65 mm taper$7.65

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Carboy Caps 2 hole for 3, 5, 6 and 6.5 (ribbed style only) gallon Carboys
Carboy Caps 2 hole for 3, 5, 6 and 6.5 (ribbed style only) gallon Carboys1
Average rating:
$3.82

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