slide 1 of 3, Gibraltar Building Products 7.75-in x 13.25-in Polystyrene Foundation Vent Plug, 1 ct
slide 1 of 3, Gibraltar Building Products 7.75-in x 13.25-in Polystyrene Foundation Vent Plug, 1 ct

Gibraltar Building Products

Gibraltar Building Products 7.75-in x 13.25-in Polystyrene Foundation Vent Plug

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Instant winter insulation for crawl spaces. Pressure fit installation with no tools required. Increase comfort and reduce the risk of freezing plumbing. A winterized crawl space can reduce heating bil…