Nitrogen Draft System Faucet For Homebrew Nitro Beer Or Nitro Coffee - Nitrogen Tank With Brass Stout Faucet Fittings & Dual Gauge Nitrogen Regulator - Ball Lock Keg Compatible The combination of nitrogen and a stout tap help produce a thick, creamy head on a beer. This system has the fittings to work with a ball lock keg. A 4 5/8" shank with Brass Stout Faucet for mounting in a Refrigerator door or homemade kegerator A dual gauge nitrogen regulator that tells you how much pressure you have on the keg as well as how much nitrogen you have left in the nitrogen tank Does not include a Ball Lock Keg. Nitrogen Tank must be shipped empty, in accordance with federal law.