Bargain deal available on the 24" x 8" Steel Blade Grille with 45° Fixed Blades Parallel to Short Dimension with an opposed blade damper in soft white (Shoemaker 936-0-24X8) while it's still in stock online at PlumbersStock. The 936-O series offers fixed 45-degree steel blades that are spaced at 2/3-inches. The blades run parallel to the shortest dimension. Be aware that the opposed blade damper requires a screwdriver to operate it. Countersunk mounting holes provide a flush appearance. Shoemaker manufactures heating and cooling solutions that are both innovative and practical.