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.
Clean, contemporary, louver design. Corrosion-resistant ABS plastic. For 3 inches or 4 inches I.D. ventilation system. Requires (Attwood Code 1341) collector box for 3" system, or (Attwood Code 1342) for 4" system. Install with #8 screws. Sized for installation even on highly-contoured decks.
Opening Hole Size: 2 x 15-3/8 inches
For Use With Collector Boxes: 1341 (for 3" System); 1342 our code FO-3413 (for 4" System)
Install with #8 screws (Not Included)
Material: Corrosion-resistant ABS plastic
Type: Hull-mounted vent
Manufaturer Part #: 1494F1
PRODUCT NUMBER: FO-3764