bbq factory&reg; Replacement Nexgrill 720-0439 & Sam Members Mark 720-0582B Gas Grill SS Burners & Porcelain steel Heat Plate the model # just for Ref., please double check the item size before you order it. Fits Nexgrill Models 720-0439 & Sam Members Mark 720-0582B Gas Grill Burner Dimensions: 14 3/8" x 1"; Burner Material: Stainless Steel; Heat Plate Dimensions: 15 3/8" x 5 1/8"; Heat Shield Material: Porcelain Steel;