Dundas Jafine TD48PGKZW6 ProGard Dryer Vent Kit, White 3 Louver damper system helps prevent cold air, snow or rain from entering the home Paintable to match the home's exterior UV Resistant coating helps prevent cap from discoloring Snap on pipe to cap assembly that eliminates the need for lint trapping staples Cap contains a caulk edge to help maintain a cleaning caulking application