Lambro Dryer Vent Closure replaces conventional dryer vent hoods with a practical and efficient design. Its floating shuttle remains closed when the dryer is not in use, providing a positive seal that keeps out cold or hot air as well as unwanted pests. Crafted from durable ABS plastic, this off-white vent can be painted to match your home's exterior. It installs easily using a 4" pipe and measures 13 inches high by 6-1/2 inches wide and 7 inches deep, making it a fit for most dryer vent openings. This product a reliable solution to improve your home's ventilation while maintaining energy efficiency and protection from outdoor elements.