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Home Brew Forums > Home Brewing Beer > Equipment/Sanitation > Why are carbonator caps so expensive?
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Old 12-10-2010, 07:49 PM   #1
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Default Why are carbonator caps so expensive?

I know I can make theses things for less, and have to buy a freakin shrader valve tire filler...blah, blah, blah... Why the eff oare these things so expensive?

It is basically a corny post that screws on a PET bottle.

Has anyone figured out how touse a corny post with an adapter to fit onto a PET bottle?

I would love to have the convenience of using my kegging system, (without modifying it) to carb my 2 liter bottles...

...I ask again why are these things so outrageously priced.

I own one, and I am not paying what I payed for the one I have ever again!

On the other hand does anyone know where I can grab a few of these for a bargain?

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Old 12-10-2010, 07:52 PM   #2
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Low demand specialty product. Like you say, you can build your own.

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Old 12-10-2010, 07:54 PM   #3
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Has anyone tried seeing if a corny post will thread onto a 2 liter bottle?

I know I have spare kegs around and have never tried.

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Old 12-10-2010, 07:59 PM   #4
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Has anyone tried seeing if a corny post will thread onto a 2 liter bottle?

I know I have spare kegs around and have never tried.
There is no way, at least not without some sort of adapter.
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Old 12-10-2010, 08:00 PM   #5
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There is no way, at least not without some sort of adapter.
Yeah. I forgot how large a mouth 2 liters have.
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Old 12-10-2010, 08:23 PM   #6
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What are they, like $20?? Yeah it's a piece of plastic with a valve on it. Do you have any idea how much it costs to design and manufacture a plastic mold? On an item that sells as little as a carbonator cap, they are probably not making much money when it's all said and done.

Building one is not that hard, but takes a schrader valve and your time. Could be a fun project. Buying one for $20 takes about zero time and you're ready to hook up to your gas. It's worth the $20 for convenience IMO.

You can build one for cheaper, but ask yourself how much would you have to have someone pay you for that homemade carb cap if you were to sell them? (Cost of material and time and overhead and multiply by at least 2 minimum).

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Old 12-10-2010, 08:33 PM   #7
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Perhaps the patent has something to do with the price. I agree they are wicked expensive.

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Old 12-11-2010, 12:23 AM   #8
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You can get four of them (or at least an equivalent product) for $20 from Crankandstein. It's a great deal, a lot of people in my local brew club use them.

Full disclosure, I occasionally work for Don (Dr. Crankandstein) turning metal for the mills.

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Old 12-11-2010, 12:32 AM   #9
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You can get four of them (or at least an equivalent product) for $20 from Crankandstein. It's a great deal, a lot of people in my local brew club use them.

Full disclosure, I occasionally work for Don (Dr. Crankandstein) turning metal for the mills.
Sweet! Never knew those existed. Its more like the parts you would use for DIY, but you would probably spend $20 on all the parts alone for 4.
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Old 12-11-2010, 12:40 AM   #10
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You can get four of them (or at least an equivalent product) for $20 from.
The working word here is "equivanent." Can you pop your disconnect off a keg and charge a pet bottle, then return it to the keg? Didn't think so.
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