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Attwood louvered cents feature all-welded 304 grade stainless steel construction with a polished finish. Install vent as a complete unit from either inside or outside the hull.
These vents will adapt to 3 and 4 inch ventilation systems, (collector box required) and come pre-drilled with six mounting holes to accommodate standard #8 type screws.
WARNING: These products may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.P65Warnings.ca.gov