The Southbend 1127299 Burner Twin Plate Air Shutter helps maintain proper air-to-gas mixing for stable burner operation and consistent heat performance. Featuring a twin plate design with two slots and a .463-inch orifice hole, this component regulates the airflow entering the burner assembly before combustion occurs. By controlling the air mixture, it supports efficient flame formati... https://partsfe.ca/1127299-southbend-air-shutter