** ORDER YOUR CORRECT SIZE ** Match your filter size. Order the Worth Home A/C vent cover size that matches your 1" air filter (DO NOT measure your old metal vent cover). Watch the video “Don’t Measure Your Old Cover” to ensure a quick installation. EXAMPLE: If your filter is 18" x 18", order a 18" x 18" cover only. (Filters sold separately) **CHECK YOUR DUCT SIZE: HVAC Ducts must be at least ⅛" larger than the size you order and have 3" depth inside. EXAMPLE: A 18" wide x 18" tall cover needs a duct opening of at least 18 ⅛" x 18 ⅛" and 3" deep. Remove your filter and/or old cover to measure correctly. Please reach out to us with any brand questions. The first measurement is the width and the second is the height/tall. Confirm your louver measurements before ordering. The 18" W x 18" H has a louver measurement that is 18" wide and the vent is 18" tall. ***Check SURROUNDING wall clearance. Allow 2" of space around the HVAC opening for the Worth Home decorative wood border frame. EXAMPLE: If trim or baseboard is within 2" of the duct opening, the cover will require wall modifications. The overall measurements of the 18 x 18 cover is 20.8" wide x 19.5" tall. High-quality solid pine wood construction with a lite coat of white primer. Ready to add a topcoat paint and seamlessly integrate into your décor. We recommend applying a water-based enamel topcoat to protect from humidity associated with HVAC systems. Removable wood cover for easy filter change & cleaning - uses a 1" thick filter/ Not compatible with metal washable filters. Designed to hold a standard 1" filter with an actual width of 0.75". Our vent cover latches on with our patented brackets to our metal filter housing. Requires a screwdriver to install. Mounting screws not included. May require some wall modification after removing the old AC cover as not all metal AC covers are the same. Engineered for optimized airflow and performance. The only decorative ac vent approved by national HVAC manufacturers. The plantation shutter air return vent cover, with its louver design, facilitates air circulation and improves AC filter health. Decorative Plantation Shutter design is optimized for optimal air flow. Performance meets style with the Worth Solid Wood Luxury Vent Cover. Installs in less than 30 minutes. May require some wall modification after removing the old AC cover as not all metal AC covers are the same. Paint-Grade-Premier-Series: Add the finishing touch to your home by replacing stamped-metal grilles with a stunning high-quality solid wood return air grilles. Made with the highest quality tongue-and-groove technique and designer plantation shutter design. Comes with a topcoat of white primer. Each piece is hand crafted for long-lasting construction and comes with a 5-year warranty. These DIY decorative vent covers come with an easy-to-install metal filter box that holds a standard 1" A/C filter and locks in place to ensure a safe and flush wall mount. The new standard in luxury homes. Based in Houston, Texas, we have been upgrading homes with beautiful AC vent covers for 20 years.