This has 2 grill grids each measuring 17.5" x 11.9", for a total of 17.5" x 23.8", weber spirit 300 cooking grates made of matt cast iron. Replacement parts for Weber 7638, Weber 7639, Weber 65619, Weber 65906. Replacement for Weber Spirit 300 series (2007-2017): E310, Spirit E315, Spirit E320, Spirit E330, Spirit S310, Spirit S315, Spirit S320, Spirit S330 gas grill with Front or Side Control Panels. Also fit for Spirit 700, Weber 900, Genesis Silver B/C, Genesis I-IV & 1000-5000, Genesis Platinum I & II, Genesis Gold B/C (2000-2001), Genesis Gold B/C (2002+) Gas Grills Weber spirit e310 grill grates also fits Weber Spirit II 300 Series: Weber Spirit II E310, Spirit II S310, Spirit II SP-310, Spirit II SP-320, Spirit II SP-330 and Spirit 2 GS4 gas grill. weber spirit 300 grill grates also fit for Weber Models 3280699, 3280901, 3291001, 331298, 3350698, 3351001, 3351398, 3361001, 3361398, 3361411, 3380001, 3380901, 3721001, 3821001, 4421001, 4421301, 4421411, 4430411, 4430411 2009-13 , 4521001, 4521301, 46410674, 46510001, 1100, 211298, 211901, 219798, 221901, 2251001, 2251298, 2251398, 2251411, 2261001, 2261298, 2261411, 2261698, 227298, 2281001. weber spirit 310 grill grates also fit for Weber Models 6331499, 6340001, 6721001, 6721301, 6721411, 6731001, 6731301, 6740001, 6761411, 6820801, 6821001, 6821301, 6821411, 6831001, 6831301, 6831411, 6840001, 691101, 7760001, 7770001, 77924014239, 7860001, 7870001, 900, 2281398, 2281698, 2291001, 2291398, 2291411, 2291698, 2291699, 229298, 2350598, 2351001 Hongso 17.5 Inch Cast Iron Cooking Grill Grates Replacement Part for Spirit 300, 310, 320 Series, Spirit 700, Genesis Silver B/C, Genesis Gold B/C, Genesis Platinum B/C Gas Grills, 2-Pack 7638, weber spirit e310 grill grates, weber spirit 300 grill grates,, weber spirit 310 grill grates, weber spirit 300 cooking grates, weber spirit grill grates 300, weber spirit 300 grill grate, weber 7638, weber grill grates replacement 17.5, weber grill grate 17.5