Guinness Homebrew Converstion Kit. 3.5 Long Beer Shank. Stout Beer Faucet with Stainless Steel Nozzle. Dispensing Guinness requires a gas mix of 75% Nitrogen and 25% CO2 in your gas tank. The item “Guinness guiness Beer stout Tap Handle Homebrew Converstion Kit kegerator Keg” is in sale since Wednesday, April 8, 2020. This item is … more