This high quality 18-inch fire pit ring burner is designed to delight all onlookers with its amazing flame. The double concentric ring design increases the overall diameter of the burner, allowing for a truly realistic and evenly distributed flame. Furthermore, the burner holes have been drilled, not punched, which means no whistling noises are produced. This 147,000 BTU burner also comes with a convenient 1/2-inch gas inlet for easy connection to a natural or propane gas supply. Made of durable 304 stainless steel, it can withstand extreme temperatures and harsh weather without any damage or discoloration. Best used with a 2 - 4 inch layer of fire glass for the most spectacular effect!