This ABS plastic roof vent will provide 61 square inches of net free area. The vent is designed to ventilate up to 128 square feet of attic when sufficient air intake is also present. It has a 8 inch square perma-coated screen to prevent birds and other animals from entering the house, and a large nailing flange with pre-drilled nail slots to allow for expansion and contraction and ease of installation. It is available in either a textured gray or textured black finish, with UV protection for longer life.
Dimensions: 16.5 inches x 19..4 inches x 4.75 inches high