Do AB Kegs and Cornelius Kegs fit in the kegerator? Nat January 29, 2020 13:24 Updated Yes, AB kegs and Cornelius kegs will fit in the Kegerator. It will fit either; 3x 19 L kegs or, 1x 50 L commercial keg. For full specs on the Original Kegerator, see here. For specs on kegs, see here. Related articles Original Kegerator Specifications Keg Sizes and Specifications Stainless Steel Fermenter Dimensions Instructions - Original Kegerator How do I make sure the CO2 regulator is installed correctly?