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Carboy Cap (Orange)
2" ID Orange Carboy Cap for 3, 5 & 6 Gallon Carboys
Orange Carboy Cap with 2" inner diameter. Measure your carboy opening to ensure the right size. Fits most 3,3.5,5,6 gallon models.

Two spouts for a variety of uses. Insert air locks, siphoning tubes, probes for thermometers, or blow-off tubes!
Price: $3.99

Availability: Usually Ships in 24 Hours


Carboy Cap

Inner diameter is 2", for use with carboys that would typically use a no. 10 stopper.

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Average Customer Review: Average Customer Review: 3.5 of 5 3.5 of 5 Total Reviews: 8 Write a review.

  0 of 0 people found the following review helpful:
2 of 5 Doesn’t seal well January 26, 2020
Reviewer: Matt from Airdrie, AB Canada  
I’ve purchased these in the past and they’ve been great.  I just bought 2 more and the plastic is very stiff and doesn’t stretch at all so it will not seal tight on the carboy. Need to tape it down to keep a good seal.

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  1 of 1 people found the following review helpful:
1 of 5 Works well at first, but ... November 23, 2017
Reviewer: JP from Qu├ębec, Canada  
Bought 4 of these for my carboys to use with blow-off tubes during primary. First use everything went well, but after only a wash in an alkaline solution they lost their air tightness (no more bubbles coming out of the blow-off tubes, all the CO2 went throught small gaps of the carboy cab). I do not recommend buying these.

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  0 of 0 people found the following review helpful:
4 of 5 Works great with small addition October 11, 2017
Reviewer: Scott MacDonald from Sudbury  
I bought 3 of these for 6 and 5 gallon glass carboys.  Transferred wort into 6 gallon carboy put cap on and inserted air lock.  It didn't seem too snug but left it over night.  Next morning fermentation was well on it's way but air lock wasn't bubbling.  Went to Canadian  Tire a bought three 2" pipe clamps.  Put one on tightened a few turns and bingo air lock started bubbling.  I just have to find a thief that will fit the the second hole.

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  1 of 1 people found the following review helpful:
2 of 5 Not tight at all July 28, 2017
Reviewer: Jesse from Windsor  
I bought 2 of these. Shipping was really fast but 2 cost 17 bucks after shipping cost. And they don't sit tight at all on my 6 gallon carboy. Waste of money for me. I liked the idea though

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  2 of 2 people found the following review helpful:
5 of 5 Such a great product July 17, 2016
Reviewer: Brandon from Oshawa, ON Canada  
I have 3 of these guys, they work much better than a rubber stopper.  I use them both for fermentation and more recently also to move beer to the keg.  Having two holes on top makes it easy to push the beer out of one by injecting CO2  in the other, eliminating contact with oxygen.

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