The 210VM series is a 1-way air register used for wall or ceiling openings. The adjustable vertical front bars allow for one-way air flow. Our Smooth glide technology ensures rattle free and quiet airflow from your central air system. Smooth glide also provides for smooth opening and closing of your back dampers. Our high quality product will ensure years of continuous use. TRUaire™ Supply Register, 1-Way, Series: 210VM, 14 x 12 in, 15-3/4 in Overall Width, 2-1/4 in Overall Depth, Adjustable Vertical Bar Blade, 1786 cfm, 0.894 sq-ft, 3/4 in Blade Spacing, Steel, Pristine White Powder Coated, Import