Size Name: 4” x 12” Welded steel faceplate for durability and reliability over years of use. All metal opposed blade damper box allows for easy airflow adjustment without worry. Each Accord Ventilation product is crafted using high quality materials that provide strength and durability. Accord Ventilation produces floor registers, grates, and vents in a variety of designs and sizes. Accord Ventilation products are sure to enhance any home decor. To determine the correct size to order, measure the size of the duct opening. Do not measure your current floor register. After removing your register from the opening, measure the height followed by the width. Purchase a new register that matches the measurements of your duct opening.