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Standard Carboy Cap

$2.99

Product Number: 7044

Availability: In stock

To use the Carboy Cap: Push a racking cane through the center tube, place on the top of your carboy, blow into the other tube, and a siphon is easily started. May also be used for blow-off when fermenting. Attach a length of 3/8" ID tubing to the hood, and run the tubing into a bucket of water. When used this way, the carboy cap takes the place of an airlock.

Note: This item is only compatible with glass carboys in 3, 5, 6 or non-acid 6.5 gallon sizes.

Customer Reviews

33 People have reviewed this product

Overall Rating: 4.7

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Makes siphoning a lot easier Review by Tony

(Posted on 1/29/14)

Product Rating:

Using a racking cane, I use a quick blast of CO2 to get the siphon going rather than blowing into the tube.

Handycap Review by unionrdr

(Posted on 11/26/13)

Product Rating:

I know this isn't supposed to be used with the better bottle,but I got one & it fits snugly. I put the airlock in the center tube for one week oaking,etc. Working just fine so far on my 6G BB.

Helps out a lot when transfering Review by JD

(Posted on 11/17/13)

Product Rating:

Makes racking fast an easy, just insert your cane and blow in the other hole and the siphoning starts.

Sweet! Review by Cameron

(Posted on 10/14/13)

Product Rating:

These caps make it super easy to siphon without an expensive auto-siphon. I'm confident in the seal they make on the top of the carboy. A bit tight with the Better Bottles, but it still works.

Basic equipment for carboy users Review by Sanjay

(Posted on 10/13/13)

Product Rating:

If you use glass carboys then you should get this. Its so easy to start a siphon, and you don't even need an auto siphon. You can save money that way, and get something more durable. Its also good for dealing with blow offs, which can be a problem with limited head space.

Reduces risk of aeration Review by Omar

(Posted on 9/23/13)

Product Rating:

I found this cap to be a nice upgrade when siphoning beer from the carboy compared to an autosiphon. The latter almost always starts to leak air into the beer stream half way through, but with the cap I don't have to worry about that anymore.
And by the way, I've tried using the cap on Better Bottle and it worked just fine.

Very useful for racking Review by Corwin

(Posted on 9/16/13)

Product Rating:

I attached a tube and filter to the offset tube and blow into it and the beer flows through the siphon up the center tube into the bottling bucket. Al very easy and it's easy to sanitize the cap.

A great addition Review by Nadim

(Posted on 8/15/13)

Product Rating:

This is really useful for racking And also if you want to flush the carboy with a bed of CO2. Maybe the fit could be a little tighter, but it's good enough.
If you have a carboy handle it must be mounted lower down, not at the lip.

LOVE these things! Review by Jason

(Posted on 8/6/13)

Product Rating:

I love these things! I can cut them to modify them for whatever I want to hook up on top. I've been experimenting with blowoff tubes. I've been able to attach these to whatever I've wanted to try. Currently I have a 1/2" PVC blowoff tube i made by cutting a slightly smaller hole in the top, then shoving the PVC through. Some PVC elbows turned it into an uncloggable blowoff tube... critical because I've been experimenting with high gravity brews that get violent.

Helps out a lot with the siphon Review by Drew

(Posted on 7/27/13)

Product Rating:

These are useful for siphoning my carboys. The fit could be tighter but for siphoning it works fine. Now that I've moved to Better Bottles I miss these caps.

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Standard Carboy Cap