Wall Opening Size = Listed Size. Handua Return Air Filter Grille used for sidewall or ceiling openings.
Our Return Air Filter Grilles do not require screwdriver to open, you can easily open the latch with a finger move. The fixed hinged return air filter grille is recommended for ceiling, this Grill uses a 1 thick filter (not included). Using our Return Air Filter Grille within your ventilation system will improve your home circulation.The steel is stamped so there is no sharp edges. Durable white powder coated, made of high quality steel. Return Air Filter Grille for Duct Opening, White, Steel.
1/3spaced fins set at 50 degrees. Use standard 1 thick disposable filters (not included).
This model has fixed hinges so that you can't completely remove the door. Equipped with adjustable filter retainers. Primary use: Side wall and ceiling. Screws are included with the system, standard.
Standard color is white (Ral9016). How To Measure A Grille. Always measure the size of the duct opening (the "hole" in the duct/wall). Do not measure the entire size of the register itself.Each grille has a front face frame, that will overlay at wall joint. Entire outer size of the grille is; listed size +2 5/8-inch. 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 18" wide by 18" tall, order a 18x18.