The Garland GL1090500 Burner W/Air Shutter 21" OD Cast Iron, a replacement burner assembly intended for compatible commercial kitchen equipment. It operates by regulating the air-to-gas mixture through an integrated air shutter, enabling a steady flame that promotes even heat distribution across cooking surfaces. The cast iron construction provides durability for regular use in demand... https://partsfe.com/gl1090500-garland-burner-21-ci