Air Vent galvanized steel round roof louver (Model #B144WW, Item 1416446) in like-new condition, still in original box. Measures approximately 9 inches deep with a 26 x 26 inch footprint. Includes the roof louver only. Galvanized steel construction provides excellent corrosion resistance and durability. Designed for effective attic ventilation and moisture control. No damage or missing parts noted.