3299032 Defroster Louvre $13.86 Quantity discounts available QuantityPrice Quantity -+ Add to Cart Details Diameter: 3 3/4" (95.25 mm)Mounting Diameter: 3 3/8" (85.55 mm)Used in various Blue Bird, Thomas, and International Details Back DetailsDiameter: 3 3/4" (95.25 mm)Mounting Diameter: 3 3/8" (85.55 mm)Used in various Blue Bird, Thomas, and International applications