stainless steel fire pit burner，A rectangle fire pit burner kit typically includes a burner, a control panel, and a gas line. The burner is usually made of stainless steel and is designed to be placed in the center of the fire pit. The control panel is used to control the amount of gas that is released from the burner and to regulate the flame. The gas line is used to connect the burner to a propane tank or natural gas line. The kit may also include a fire pit lid, a fire pit grate, and other accessories.