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Amazon.com: Pre-Cut Foam Block | 8.25” X 16.25” Width X 1” Thick | Crawlspace Vent Block, Standard Vent Size | Arts & Crafts Foam | Polyethylene Foam Sheet | Insert Packing Foam
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Gibraltar Building Products 5.5-in x 15.5-in Polystyrene Foundation Vent Plug in the Foundation Vent Plugs department at Lowes.com
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Amazon.com: Pre-Cut Foam Block | 8.25” X 16.25” Width X 1” Thick | Crawlspace Vent Block, Standard Vent Size | Arts & Crafts Foam | Polyethylene Foam Sheet | Insert Packing Foam
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Amazon.com: Pre-Cut Foam Block | 8.25” X 16.25” Width X 1” Thick | Crawlspace Vent Block, Standard Vent Size | Arts & Crafts Foam | Polyethylene Foam Sheet | Insert Packing Foam
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Crawl Space Recessed Foundation Vent Cover - Fits 8" H x 16" W Openings - Durable and Efficient Sealing Solution (Black) - Amazon.com
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