rtf systems RTF-FPKIT-LIN48 48" x 18" Tall Ready-to-Finish Fire Pit Kit - Bring life to your backyard with this Ready-to-Finish Fire Pit Kit. It includes a 36" stainless steel linear burn and pan, stainless steel flex hose, key valve, and battery operated push button ignition. The fire pit is designed for natural gas but inserts come equipped with a liquid propane conversion kit.