Collector Box For Modular Vent... Depth 5" Instalation size 2-3/4" x 18".
Attwood hull-mounted vents are designed to install by fastening as a complete unit from either inside or outside the hull. Ventilation hose (not included) twists into the bottom of the box to form a raised water barrier. Plastic vents are corrosion-resistant, will not discolor. All collector boxes and vents are designed for intake or exhaust and meet ABYC H-2 cross sectional area requirements.
For use with modular vents, with 4" I.D. wire-supported ventilation hose. Corrosion-resistant plastic.