Product review (2 stars): Poorly Manufactured Product
My dryer vent hasn't been keeping out the cold air as well as I would like and being energy conscious, I decided to try this product.  The idea of it seems to be very good.  In other words the engineering is fine.  However the material is just okay (thinner and more brittle than other plastic vents on my home) and the manufacturing quality is poor.  There are gaps between the seams where the various molded pieces are assembled that will let in water and air.  I am debating whether to try and patch this unit myself or simply toss it in the trash bin.  Right now it is sitting in the basement awaiting disposition.  I do commend the seller for prompt delivery.