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  • Kit includes cap, CO2 injector and 2 threaded 16g CO2 cartridges
  • Interchangeable with the 64 fl. oz. and 128 fl. oz. DrinkTanks growlers, sold separately
  • All DrinkTanks products and accessories are completely BPA-free
  • Each 16g CO2 cartridge lasts for 3 - 5 growler fills
  • Will not over-pressurize the growler; bleeds off at 10 psi
  • Hand wash with mild soap and hang dry


View all DrinkTanks Water Bottle Accessories

REI membership


Best Use Casual
Material(s) Glass-filled polypropylene/stainless steel/silicone
Dimensions 20 x 3 x 1.5 inches
Weight 8 ounces
Rated 4 out of 5 by from It's so great for the first pour and then I LOVE the idea of this. It's too fragile to depend on. I am still giving it four stars because what alternative is there to turn my growler into a small keg? I recommend before using it, to buy the replacement parts kit. You won't have a problem with the tube or the cap--it's the other parts like the little valve inlet thingy that are NOT well made. Be careful if you remove it because the little white rubber valve thing can easily pop off and get lost. Fits well and doesn't leak.
Date published: 2016-06-01
Rated 1 out of 5 by from Great idea, very poor quality This worked great for the first few growler fills, but one day the spigot handle (activator to poor out the liquid) just snapped right off when I applied the normal pressure to operate it - not well made at all. It looks just like the spigot on a normal keg tapper, but it clearly isn't nearly as well made (as those get all kinds of abuse at parties). I guess the only bright side is the manufacturer sells a parts kit on the web site for $12.00 (as opposed to 45 for whole new keg cap kit). This poor quality is really a shame because the growlers themselves seem to be practically indestructible and very well made.
Date published: 2017-01-02
Rated 2 out of 5 by from Good Idea, Needs Work I really like the idea behind this, but in practice it isn't all that great except as a conversation piece. The first charge with the CO2 is likely to be messy, as the cartridge and the bottle are both near full (even leaving the recommended 12 oz. clear in the bottle). After that you have to recharge the bottle with the CO2 after almost every glass (you might get 1 and 1/2 sometimes) and the last charge is close to depleting the cartridge. The most disappointing thing is that the spigot end seems to hold a bit of liquid so you have to be careful to drain it all out in the glass even after you close it to prevent liquid from leaking out. I won't use it often, but I've at least learned some tricks about it now for when I do.
Date published: 2016-10-18
Rated 4 out of 5 by from Works pretty well, over pressurizes 64 Oz tank Works pretty well, definitely over pressurized the 64 OZ tank, but once I got the hang of only sightly depressing the CO2 cartridge it got a lot better.
Date published: 2016-04-05
Rated 5 out of 5 by from Handy dispenser This cap makes it easier to use the growler, I do not have to keep opening & closing the lid to serve the beer. It does not come with instructions bu the online how to video clearly demonstrates how it is to be used.
Date published: 2017-01-11
Rated 1 out of 5 by from Poor Quality For $45 I expect better quality, that price demands better than novelty quality product. First kit I purchased broke within two months (CO2 injector lost its ability to seal, causing CO2 cartridges to empty as soon as connecting to injector). Second kit broke within one month of use. The lever on the black dispenser snapped as I was pouring a glass of beer, using normal pressure. The keg cap really is the differentiator for this product. With such an expensive price not only should it be better quality, it should be warrantied.
Date published: 2017-06-11
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Anyone know if drinktank has plans to improve the quality of the keg cap accessory kit?

Asked by: Mr Toad
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