Photo 1 of 16" w X 30" h Aluminum Exterior Vent for Walls & Crawlspace - Rain & Waterproof Air Vent with Screen Mesh - HVAC Grille - Aluminum [Outer Dimensions 17.5”w x 31.5”h] 16 x 30 Anodized Aluminum

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Photo 1 of 16" w X 30" h Aluminum Exterior Vent for Walls & Crawlspace - Rain & Waterproof Air Vent with Screen Mesh - HVAC Grille - Aluminum [Outer Dimensions 17.5”w x 31.5”h] 16 x 30 Anodized AluminumPhoto 2 of 16" w X 30" h Aluminum Exterior Vent for Walls & Crawlspace - Rain & Waterproof Air Vent with Screen Mesh - HVAC Grille - Aluminum [Outer Dimensions 17.5”w x 31.5”h] 16 x 30 Anodized Aluminum