Fits specific Weber Summit Series 600 Built-in series grills. Supercedes original part # 7558. This cover is only suitable for models with door handles that are horizontally aligned. If the model has doors with vertical handles this cover will not be able to attach appropriately to the grill. This Cover is lighter weight than original part # 7558 This cover measures 37" across the top, seam to seam; 16" on the sides from the top seam to the bottom and 56" from front to back. Please visit Weber's website to ensure you order the correct parts for your specific grill. It is best to look up by serial number. The following link will also help you find the alpha numeric serial number. http://help.weber.com/schematics/#serial-number