LelandMr. Fizz CO2 Tapgas Four 74g CO2 Cylinders Per Pack for Picnictap & Fridgetap

Unfortunately not close to a CO2 fill/exchange, so while on the expensive side these work well for 2 gallon kegs in the fridge. Sellers vary but typically more cost effective than elsewhere, and received a refund for an order that arrived with the wrong quantity.

Received only 2 cylinders, description says it should be 4

The four pack is a great deal. I use these cartridges for a small planted aquarium. It is hooked up to a Green Leaf Aquarium regulator. It’s hard to find 74g cartridges that are threaded and at a decent price. This one item fits the bill.

Nothing exceptional. Just what I needed.

The description says 4, but you only get 2, and at a very high price for two!!!

Works great with kegs, keeps the beer fresh.

I've used these for a couple of years to carbonate my 1 gal. keg now and find they work quite well. They were cheaper than the ones I was getting from Beer Supply stores or online Brewer supply sites. Would purchase them again.