DrinkTanks 6 Pack of Co2 Cartridges for use with Keg Cap Accessory Kit

It threads into the 3/8" threaded opening on regulators like  Mini CO2 Gas Regular 0-30PSI Keg Charger with '' 3/8 '' Thread for Homebrew Beer Kegging by MRbrew .I'm not sure if I'm simply not used to how much CO2 is in a 16 gram cartridge, if there's a leak in my system, or if there isn't really 16g in each one of these, so I'm going to test it out and will update this review once I have some concrete findings.Setup:I've applied some keg lube to the gaskets on my regulator to minimize the likelihood of any leaks. My first two cartridges ran out over night, but I'm not sure if that was to me dispensing a lot of liquid and purging some CO2 through the pressure release valve on the keg, if there was a leak in my system, or if there's not really 16g of CO2 in each cartridge, or I'm just so much more used to the 5lb CO2 tank.Before putting the cartridge into the regulator, I put some masking tape on and wrote "Start:" and "Finish:" on the tape. Using my gram scale (resolution of 0.1g) it measured 61.9g with the tape label on the cartridge.So far, more than 24h later, it still has gas in it and is able to dispense more liquid. This is better than previous trials, so it seems to indicate that there are no leaks in my system. I'm either not used to how much CO2 is really in these small cartridges, or the amount of CO2 is very small. Once it runs out I'll know for sure, and I'll update this review when I've got something conclusive to share.Update: Increased to 5 starts. I measured a final weight of 46.0 grams, so that means the difference between full and empty was 15.9 grams, so the amount of CO2 in these is legit. I probably have a leak somewhere either between the cartridge and regulator, between the regulator and ball lock disconnect, or in the regulator itself.

This is advertised as Drink Tank brand food grade cartridges. I have a Drink Tank keg, so looked for this brand specifically.I received off brand cartridges in a blank bubble envelope. The cartridges say they are for small to medium tires, and give no indication that they are even food safe.

Two of the six came completely empty! Cartridge was sealed but had no pressure!Otherwise other than being small they appear to work great for a picnic tap on a mini (1gal)keg.

They might be fine for filling your bike tires, but the product I received is not the one specified here. These are not DrinkTanks brand - they are not even food grade co2 cartridges. I would advise not purchasing this product.

I would have rated higher, but was a little frustrated by the fact that the ad did not specify the weight of the cartridge. Its a 16g, which is the largest size my regulator excepts. Otherwise its a good buy, a little expensive compared to buying in bulk.

The price is very high, but I thought I was getting a high quality product. The first one I used worked great. Second one had almost no CO2 in it. Disappointed.

Too bad you only get one growler for one cartridge. I guess that’s how they make you buy more. Work great though

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