CONSTRUCTION METALS INC 5-1/2×7-1/2 Vent Plug

Construction Metals Foam Vent Plug, 5.5″ x 7.5″

• 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 bills
• Help reduce utility bills

Designed to prevent unwanted cold air and moisture from getting beneath the home in the winter months. The foam plugs act as insulators and fit snug within the cavities of plastic foundation block vents.