Turn any 20 gallon Anvil kettle into a fermenter. Anvil offers a patent pending silicone lid that eliminates oxygen and bacteria from entering your fermenter. Each lid comes with pre-drilled holes to fit the included airlock. With the fermenting kettle, you can also turn you Anvil valve and diptube into a racking arm for a sediment free beer. Simply pitch your yeast and put the lid on. It's that easy!