This product features a 3 louver damper system that helps to prevent cold air， snow or rain from entering the home. The louvers have been redesigned to help prevent them from sticking. This cap also features a UV resistant coating that prevents the sun from discoloring it.
Plastic construction
A recessed caulk line helps to assist in a clean caulking application
Caps are paintable to match the exterior of your home
Non-stick louvers
Ideal for bathroom fan venting， dryer venting and kitchen range hood venting
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