Dometic 30268 is a Hydroflame Series Furnace Replacement Burner Head designed to fit Atwood 85-IV 16, 85-IV 20, 85-IV 25, 85-IV 31, and 85-IV 35 Model Furnaces. It's designed to offer reliable performance and easy installation. Climate control is now simpler, allowing you to extend the life of your furnace.