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 Instructions - Kegerator Stainless Steel Fermenter Dimensions How do I make sure the CO2 regulator is installed correctly?