Hongso PCH502 Universal Matte Cast Iron Cooking Grid Replacement for Select Gas Grill Models by Ducane, Grill Chef and Others, Set of 2 Fits Ducane Models 3100, 3200, 4100, Affinity 3070101, Affinity 3100, Affinity 31421001, Affinity 3200, Affinity 3300, Affinity 3400, Affinity 4100, Affinity 4200, Affinity 4400. Fits Uniflame Models GBC850W, GBC850W-C, GBC850WNG-C. Fits Grill Chef GC7550. Compatible Part Numbers: 55-08-167, 5508167, 30501009 Material: Matte Finish (non-gloss) Porcelain Coated Cast Iron Dimensions: 14 3/8" x 18" Each and 28 3/4" x 18" Total. Make sure you measure the size of your original parts and compare with ours BEFORE you order.