Does not come with nails
Made with an internal weather filter
Wind driven rain resistant to 110 MPH
Each vent has 18 sq. in. of net free area per linear foot
Accommodates roof pitches from 3/12 to 16/12
Has weep holes placed on 4in. centers for water shedding from the cap shingles mounted to the top of the vent
Capable of the cap shingles being fastened with a nail gun set to 100 PSI without breakage