Stainless Steel Solar powered Vent. 8-1/2" overall diameter. Interior flange is molded into outer piece requiring 4-5/8" cutout creasting 1/2" gap between cutout and inner flange. Water resistant. Very quiet operation. Moves 900 ft3 air/hour in and out of cabin. 2 blades (intake & exhaust) are provided with each vent. Comes with a Ni-Cad Battery Backup & Switch. Mounts in a 4-3/4" opening in the deck.
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