The Coho is our simple starburst patterned grate, and is available in a wide variety of sizes. Conforms to ADA Accessibility Guidelines. AVAILABLE MATERIALS: 100% Recycled Grey Iron, Ductile Iron, 100% Recycled Aluminum, Silicon Bronze, Nickel Bronze. AVAILABLE FINISHES: Raw Natural Finish, Rust Conditioner (Grey and Ductile Iron Only), Polyester Powder Coat, Liquid Coat (Available upon request), Brush (Aluminum, Bronze and Nickel Bronze Only), Polish (Aluminum, Bronze and Nickel Bronze Only). The Coho comes in a variety of styles. Square: 4', 5', 6'. Round: 6'. Rectangle: 4'x6', 4'x8', 4'x10', 4'x12'.