Stainless steel Tube-In-Tube burners. </br>Fits Broil King Signet and Sovereign models with front to back tube burners. </br>These are genuine OEM Broil King components.</br></br> <b>3-Burner Models:</b></br> - All Signet Models: 90, 70, 320, 320B</br> - Sovereign 90, Sovereign 20</br></br> <b>4-Burner Models:</b></br> - Sovereign XLS 90</br> - Sovereign XLS 20