Grill Care 17433 Stainless Steel Grid Compatible with Weber 18.5" Charcoal Grills 4mm stainless steel hinged grid with 5 year warranty Compatible with Weber 18.5" One-Touch 18.5" Bar-B-Kettle 17.5" diameter hinged grid Please note that a grid to fit an 18.5" grill has a nominal diameter of 17.5"