Single deflection and double deflection grilles are made from aluminum extrusions with a crimped and welded frame, and adjustable blades in natural anodized and powder coated colors. They are used in sidewall applications. Standard sizes: 300x100, 300x150, 350x150, 400x150, 400x200, 450x175, 600x150. Standard colour: natural anodize or powder coated white.