Guinness Homebrew Converstion Kit. 4-1/8 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 Friday, January 06, 2017. This item is … more