12In. Filtered Ridge Vent (Carton of 10 Pieces)
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. Shingle Over Width: 12in. Length of Each Piece: 48in. (4ft.)