This 31" round bowl style gas fire pit burner pan is made of from 16 gauge 304 stainless steel that has a 1/2 inch stainless nipple welded in the center to connect gas supply to bottom side of pan and gas fire ring to top side of pan. Also available with a 3/4" high capacity nipple as well. All of our bowl style pans are 2-3/8" deep and have a 1-3/8" lip around the top so they can be set in a circular enclosure to support it. We also provide built-in water weep holes in the bottom for drainage. This pan is commonly used with our 24" gas fire ring.