HVAC Premium has been providing superior in quality service for many many years. Our products are second to none, and we?ve helped numerous contractors, DIY projects, and home improvement remodeling specialists complete their masterpiece. If you are looking for a top of the line unit to enhance your project look no further than HVAC Premium. We have the largest selection of Grilles Registers & Diffusers.HVAC Premium has sold over 5,000,000 Grilles - We are proud of our many happy customers! 8"w X 6"h Is The Size For The Duct Opening Measurement Only Actual Front End Frame Outer Dimensions Are 9.75"w X 7.75"h - SEE BELOW IN DESCRIPTION HOW TO MEASURE A GRILLE How To Measure A Register Grille:Overall Size: MEASURE the size of the DUCT OPENING. Do not measure the old vent cover. If your duct opening is 14" wide by 20" tall, order a 14x20.Height vs WidthThe first number in a register grille size represents the width, the second number represents the height.Example: If your duct opening is 14" wide by 20" tall, order a 14x20.This solid stamped steel register vent grille will provide your home with ideal and quiet, rattle free airflow and ventilation for your air-conditioning and heating system as well as smooth opening and closing back dampers. The back dampers are adjusted by the lever at the front of the register so that you can easily control the air flow of your HVAC system. You can install this register supply grille on the ceiling or on the sidewall. The installation is simple, just screw the grille on to your wall with the screws that are included and that?s it!100% Satisfaction GuaranteedDon?t worry, you?re covered by our 100% moneyback guarantee no questions asked. Click Add to Cart Now! and enjoy a new updated refreshing look to your home.