GrillGrate For Weber Genesis II 300 Series 2016-Present Replacement GrillGrate Set 18.8 in. L X 25.5GrillGrates are the perfect replacement the Weber Genesis II 300 and other large gas grills. GrillGrates will make your old gas grill better than new. They are interlocking panels that fit across the surface of the grill. They can replace your existing grates or sit on top. GrillGrates produce juicier and more tender food. Made of hard anodized aluminum, they never rust. Every set comes with a GrateTool which is part fork, part spatula that fits