10 x 6 Modern Vent Cover, Linear 3 Slot Diffuser. Aluminum Adjustable bar Grille mounting Without Damper. Ac Ceiling & Wall Vent Cover. Full Control vert./hor Airflow Direction. Duct [12.3x6"Face]

ALWAYS MEASURE THE WALL OR CEILING OPENING TO CONFIRM WHICH SIZE YOU SHOULD ORDER. With this product the hole measure should be at least 10"W x 4,7"H to fit. Do not measure your old grille. INSTALATION Before you start the first step, you will need from home a screwdriver or drill, meter, pencill and all the security accesories. If you do not have the hollow opened, you need the tools to open it (depends on the material of the ceiling). 1. If you have the hollow, do not open the product bag in case you need to change it. first measure the hollow width by height and make sure that the hollow size is the same as the diffuser size that is on the bag label, to make sure that you bought the correct diffuser size. if you do not have the hollow, Measure and draw the size of the HOLLOW on the ceiling WITH the diffuser SIZE that is on the bag label wich is equal to THE diffuser NOMINAL SIZE. all the sizes are the width by the height in inches, please always measure the width first follow by the height to make sure you buy the correct diffuser. Before you star the second step, make sure to open the product, removed it from the plastic bag, removed the cardboard corner that protect the diffuser corners, and get the screws that are included. 2. Place the Diffuser in the hollow, push the diffuser until you hear the sound of the clamps opening. Don't tighten the screws before put the diffuser at he hollow. 3. Before tightening the screws, ALIGN THE PRODUCT HORIZONTALLY AND VERTICALLY TO MAINTAIN THE PARALLELISM WITH THE OPEN HOLE. Once you ensure that the diffuser is aligned, tighten the screws well using the screwdriver or drill to prevent it from falling. 4. Once the diffuser is installed, open the diffuser blades manually one by one.Take notice, that the diffuser blades are used to control de air direction.