Cooking Grid for Ducane 4100, Uniflame GBC850W, GBC850W-C, GBC850WNG-C, NSG3902B, NSG3902D & Grill Chef GC7550 Gas Grill Models, Set of 2 Ducane 3100, Ducane 4100, Ducane 30731101, Ducane30741201, Ducane30741301, Ducane 31411001, 31731101, 31731153, 31732101, 31741101, 31742101, AFFINITY 3100, AFFINITY 3200, AFFINITY 3300, AFFINITY 3400, AFFINITY 4100, AFFINITY 4200, AFFINITY 4400, AFFINITY 3073101, AFFINITY 31421001 ; Fits Grill Chef Models: GC7550, Fits Uniflame Models: GBC850W, GBC850W-C, GBC850WNG-C, NSG3902B, NSG3902D Compatible Part Numbers: 55-08-167, 5508167, 30501009, 68502, Material :304 SOLID Stainless Steel, Dimensions : 18"x 14-3/8" Each x 18"x 28-3/4" Total Grill Chef GC7550, Uniflame GBC850W, Uniflame GBC850W-C, Uniflame GBC850WNG-C Uniflame Models: GBC850W, GBC850W-C, GBC850WNG-C, GBC-850W, GBC-850W-C, GBC-850WNG-C