<b>Return Air Grille for 8"x8" Duct Opening, White, Steel</b><br><br><b></b> 1/2"spaced fins set at 40 degrees.<br><b></b> Primary use: Side wall and ceiling.<br><b></b> Screws are included with the system, standard.<br><b></b> All-steel construction.<br><b></b> Durable white powder coated.<br><b></b> Standard color is white (Ral9016).<br><br><b>How To Measure A Grille</b><br>Always measure the size of the duct opening (the "hole" in the duct/wall). Do not measure the entire size of the register itself. Size of the grille is; listed size +1.75-inch.<br><br><b>Understanding Width & Height</b><br>In a grille size, the first number always represents the width and the second one is the height. As an Example: If the hole on your wall/duct is 8" wide by 8" tall, order 8x8 option.<br><br> For this particular product you're viewing at the moment, the hole on your wall/duct opening <b>should be 8"Wx8"H.</b><br><br> Click the <b>'Add To Cart' button now</b> to order your <b>Return Air Filter Grille!</b>