Master Flow 16 in. x 8 in. Aluminum Foundation Vent Cover (2-Pack)

The GAF Master Flow foundation vent covers help to lower the risk of frozen pipes in your crawl space. They also deter the entry of debris, leaves and rodents in your crawlspace. They easily mount over most 16 in. X 8 in. foundation vents and are aluminum construction. One package contains 2 covers and 2 springs.

• Fits on most 16 in. x 8 in. foundation vents
• Helps prevent excessive dust and debris; 2 covers per pack
• For nailing to floor joists or as foundation block replacement