Review on 🔋 Convenient Maddog CO2 Fill Station: Dual Valve Bottle Refill for 12oz, 16oz, 20oz Tanks by Eddie Duncan

Excellent product! Worked as needed to fill paintball tanks from a larger CO2 tank. It's pretty easy to use but if you're unsure about ordering I'd look up YouTube for a step by step process to clear things up, make it a lot easier to visualize as at least mine Order did not come with instructions. A few things to note: Firstly, if you're using a CO2 canister (I used a 15lb can from the weld shop they sell) it either has to have a siphon or in my case I had to turn the bottle upside down on the upside down so it's actually sucking in a liquid, not just a gas. Second, you need a scale, zero your tank, and then fill up the tank until you're close to the weight your tank is rated for. The scale is important because there are no meters to tell you when to stop. The process takes a little time and can be clumsy, with hose kinking and tank jiggling on the scales in some cases, but a couple of runs and you'll get a good rhythm. Overall a great product. Also, the two O-rings that come with the kit I believe go to the filler tube and the part that attaches to the tank. Use a wrench to make sure your connection to the tank is tight and you shouldn't have any problems with a leak!