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 and Diffusers. HVAC Premium has sold over 5,000,000 Grilles - We are proud of our many happy customers! SEE BELOW IN DESCRIPTION HOW TO MEASURE A GRILLE You may think of grilles and registers as a generic component of the ventilation system in your house. But they are also the most visible representation of your air system. These grilles and registers give you an extra measure of quality that are visible to your family members and house guests. This grille has a high standard of design, production and finish on all products. How To Measure A 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. Width vs Height The first number in a grille size, represents the width, the second number represents the height. Example: If your hole is 20" wide by 14" tall, order a 20x14. If your hole is 14" wide by 20" tall, order a 14x20. 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.