Set of 5 Porcelain Steel Flavorizer Bars, Each Grill Bar is 22.5 x 2.25 x 2.25 inch.The listing is 22.5" heat plate .【Please Note】: The listing is 22.5"heat plate . If you need the 15.3" heat plate, please search this purchase link "B0796Q11QQ". Catch Drippings that Smoke and Sizzle, Adding a Smoky Flavor to Food, Easy to Install Fits Weber Spirit 300 Series (With Side-Mounted Control Panel), Spirit E-310 & E-320 (2007-2012), Spirit 700, Weber 900, Genesis Silver B/C, Genesis Platinum B/C (2005+), Genesis Gold B/C (2002+) Gas Grills. Fits Weber 2251001, 2251298, 2251398 Fits Weber 3251001, 3251398, 3261001, 3261398, 3261411, 3280001, 3280201, 3280699, 3280901, 3291001, 3350698, 3351398, 3361001, 3361398, 3361411, 3380001, 3380901, 4421411, 4430411, 591101, 6221001, 6221046, 6221411, 6221898, 6231001, 6231398, 6231411 Make Sure You Measure the Size of Your Original Parts and Compare with Ours BEFORE You Order Hongso Porcelain Steel Flavorizer Bars Replacement for Weber Genesis Silver B and C, Spirit 700, Gold B & C, Genesis Platinum B & C and Weber 900 Grill. Product Dimensions: 22.5 x 2.25 x 2.25 inches