bbq factory Replacement Porcelain coated Steel Wire Rock Grate JCX501 for Select Gas Grill Models by Arkla, Charmglow and Others Fits arkla gas grill models 4420u6, 4451k, 4451kn, 4460u6, 644ng, ga440517, ga440617, u4415, u4421 Also fits arkla and charmglow models u4429, u5658, u5662, u5672, u5679, 0903, 0905, 0905-3 Also compatible with charmglow models 0925, 0945, 0968, 0969, 0988, 0989, 0990, 10905, 10905-3, 10912, 10922, 10935, 10942, 10945, 10955 Material: Steel wire Porcelain Steel ; Dimensions: 15 1/2" x 22 1/2" Rock Grate may also be known as a Flavor Grid, Flavor Grate, Anti Flare Up, and Lava Grate.