Product review (2 stars): Never Again!
I give it 2 stars only because the concept is great, the rest of this product is horrible.  I was not a big fan of the color of this product to begin with but liked the concept of keeping cold air and critters out.  It does a great job of doing that so if you do not care that it looks absolutely horrible after a short time in the elements (see posted picture) go ahead and buy it.  Perhaps if this product is NEVER in the sun it will serve you well but if it will ever be in direct sunlight I would stay away.  The color it starts out as is I guess what you would call off white.  It does not stay that color for long though before turning yellow and the plastic becoming brittle.  I just took the cover off to clean it and it broke into 3 pieces.  Luckily (I guess) they sell the replacement cover on Amazon.  This should tell you something about the quality of the product.  After shipping it is almost $14 dollars for a new cover, are you kidding me!  I bought this simply because I do not feel like taking the siding down to replace this piece of junk with something else at the moment.  It was $6.95 for the cover and another $6.99 for shipping, if that is not bad enough they shipped it the cheapest way possible in a padded envelope via USPS and did not even bother hiding the true shipping cost of $2.54, NICE work!  So basically I just paid $14 for a part that maybe with shipping and packaging cost them $5.  I will not be purchasing another one of these covers.  Next time a piece of this product fails I will be removing the entire thing and replacing it with something else.  If this was built out of decent materials this would be a 5 star product!  Hopefully by the time I am forced to replace it someone has come out with a better version of this otherwise I guess it is back to the old flapper type.