Why are my Weber grill grates looking like they are rusting? Aren't they stainless steel? : r/BBQ
Stainless Steel Grill Grates vs Cast Iron - Which One To Buy?
Weber Porcelain-Enameled Cast-Iron Cooking Grates (2-Pack) 7637 - The Home Depot
What's The Best Grill Grate For Cooking? | Weber Grills
Amazon.com : Weber Series Gas Grills 7638 Porcelain-Enameled Cast Iron Cooking Grates for Spirit 300, (17.5 x 0.5 x 11.9 inches), Pack of 2 : Patio, Lawn & Garden
Stainless Steel Grill Grates vs Cast Iron - Which One To Buy?
What's the Best Type of Grill Grate Material? - Smoked BBQ Source