Product review (5 stars): Replaced 12 year old one
I had several dryer vents before but 12-14 years ago, I bought this item and installed it. Maybe 4 times a year, I would clean it out from excess lint, never had any problem of the cold or heat getting in, the flapper stopped the outside air.. Hopefully this will last many years, by the way, they tell us to paint it so the UV rays don't dry out the plastic.