I bought a GE 7 cubic foot chest freezer in order to build my keezer. I was able to get it cheap through my local Sears store. I figured it should fit about 3 or 4 corneys along with a CO2 tank. I had already bought a Johnson controls temperature control in order to control the temperature range within the freezer. Also, I bought a cheap digital themostat to keep track of the humidity and high/low temperature on a daily basis.