This is for our 3 and 4 inch. It heats up very fast.Also heats up a 15 gallon keg anywhere around 35 minutes. It can be used with the 50 and 100 Gallon Boilers we sell. Designed to accomendate large boilers it features a huge 10″ cast iron burner, 30 PSI preset regulator with control valve, hose guard, and a huge 22″ cooking surface to support the largest pots. This is a best seller for micro distilleries to heat up giant pots. It is around 50$ to ship within the USA. Check the box below for shipping.