This is designed for 2 BBL batches, and is a great option for someone who wants to expand capacity without starting over with a new Brew Stand and set of kettles. A slide-in extension to increase the volume of the 55 gal BoilerMaker pot to 100 gal gross capacity. Includes extension with level gauge, handles and large o-ring. Extension removal tool is required to separate the extension from the 55 gal pot and must be purchased separately.