Perfect for 5 to 20 gallon batch sizes. 3 7/8'' wide at the widest point. You will need our high-pressure, adjustable pressure regulator to operate burner. This is a ring style burner and not a jet burner. The flame distribution and control is great and not concentrated like a jet burner. Will not work with low pressure propane (house propane) or with natural gas. Ideally you want to install these about 4-6 inches below the kettle. These burners do not come with a brass jet. If you need the brass jet for attaching regulator tubing with flare outputs please purchase the H205J. If you intend on plumbing these you will need either a GSS008 or H233 to connect to your gas system. These item is not intended for indoor use.