Attwood hull-mounted vents are designed to install by fastening as a complete unit from either inside or outside the hull. 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.
Constructed of paintable, corrosion-resistant ABS plastic with no sharp edges. For 3" I.D. ventilation system with 1345 collector box. Install with #8 screws (not included).
> off white
> Hole Size: 2-1/4" x 16"
> for use with collector BC-2560
PRODUCT NUMBER: FO-3718