Master Flow EAC16X4BR Undereave Vent 24 sq-ft Net Free Ventilating Area Aluminum Brown - Pack of 36

All-purpose intake ventilation pre-punched nail holes. Surface mount. Corrosion-resistant. 16 in x 4 in vents have 26 sq-in of net-free area. 16 in x 8 in vents have 65 sq-in of net-free area.