The Imperial 1272 Range Jet Burner is a cast iron gas burner used in compatible commercial ranges. It receives natural gas through the burner connection and directs the fuel toward the burner ports, where it mixes with air before ignition. The resulting flame provides direct heat beneath the cooking surface. Its 9-inch diameter establishes the burner size for the designated range asse... https://partsfe.com/jet-burner-nat9-dia-ci-for-imperial-part-1272