Formulated of a tough, durable, and thicker gauged polyester plastic. Fasten system bolts directly to the area wall with a slide bolt assembly, making ventilation possible. Improves basement insulation. Keeps out snow, rain, and debris. Comes with brackets. Circular, Type A 40″ L. x 18-1/2″ W. x 9-1/2″ H. Backed with a 5 year warranty.
WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer.
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