A clean, contemporary, louver designed vent. Corrosion-resistant paintable ABS plastic. Install with #8 fasteners. For use with collector boxes 13411 for 3" systems. Sized for installation even on highly contoured decks. 17-9/16" L x 2-3/4" H x 11/16" D. Color Black Cut Out 2" H x 15-3/8" L Pkg. Poly Bag