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 and will not discolor.
All collector boxes and vents are designed for intake or exhaust and meet ABYC H-2 cross sectional area requirements.
Requires collector box 1487A for 3" system, or 1487B for 4" system.
You can add it in the menu above
All-welded #304 Stainless Steel construction with polished finish.
Install with #8 fasteners.