These cast aluminum gas fire pits from Tropitone are available in two sizes: 43" round and 55" round. Place the matching lid on the burner and tese gas burning fire pits double as a table. Available in 21 frame finishes. The Spectrum top has elongated cut outs that give this gas fire pit a contemporary look that can also work in traditional outdoor spaces. BTU rating on these gas fire pits start at 85,000 BTU's. These gas fire pits are fueled with a 20 lb. propane tank and natural gas conversion kits are also available.