Weber #91289 Raised Warming Rack for some Spirit 300 grills Weber # 91289 Raised, Lower Warming Rack. 2 1/2" higher than the flat version so you can cook food underneath it. MEASURE the rack you are replacing to help ensure you order the correct one. 91289 actual warming surface dimensions are 22" x 4-3/4". lower part that rests on the cook box measures 24-1/4" left to right and 3" front to back. Fits Spirit 300; Silver Genesis B & C; Genesis 1000-5500' Platinum 1 & 2; Genesis Gold and Platinum gas grills and the new Spirit E-310, E-320, SP-310, SP-320. Please visit Weber's website to ensure you order the correct parts for your specific grill. It is best to look up by serial #. The following link will also help you find the alpha numeric number. http://help.weber.com/schematics/#serial-number