Save now and get the 26" x 12" Fixed Bar Blade Grille with 45° Blades Parallel to Long Dimension in soft white (Shoemaker 915-26X12) via PlumbersStock.com. The 915 series has extruded aluminum fixed bar blades at 45 degrees, and they run parallel to the longer dimension. There is no damper with this model, you need to look to the 915-O series for that feature. Center margins are designed to mount on the backside of the grille which creates a more streamlined continuous look. Shoemaker makes products that we're proud to carry. Make sure you have the right part number, and if you aren't certain, try contacting us.