12" w X 12" h Extruded Aluminum Adjustable Core Mount Supply Ceiling HVAC Air Grille – Interchangeable: 1-Way

12"w X 12"h Is The Size For The Duct Opening Only, Dimensions With Outer End are 13.125" X 13.125"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. Some of the best features aren't readily apparent, but you will appreciate the benefits over the period of time. This grille has a high standard of design, production and finish on all products. Re-configurable/Interchangeable Sections – Easily Convertible Into 1-Way, 2-Way, 3 Way, or 4 Way – Just Lift Sections and Rotate to Re-Configure Direction. SEE PHOTOS FOR EXAMPLE Unrestricted Airflow For Your HVAC System - Full Control Directional Airflow Direction - Noise Free Components - No Vibrating Louvers Etc. 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.

• 12"w X 12"h Is The Size For The Duct Opening Only, Dimensions With Outer End are 13.125" X 13.125"
• HIGH QUALITY - Rigid Aluminum Constructed With Screw Holes To Easily Install On Ceiling Or Sidewall - Never Rust – Pristine Powder-Coat Finish - Smooth, Shiny, Scratch-Resistant, Beautiful. Looks Like It Was Just Waxed
• UNRESTRICTED AIRFLOW For Your HVAC System - Full Control Directional Airflow - Noise Free Components - No Vibrating Louvers Etc.
• QUALITY PACKAGING - Carefully Shrink Wrapped With Solid Cardboard Backing To Prevent Damage In Shipment - Hand Inspected for Quality