Round design vent hood with innovative spring loaded damper system offers complete noise control with no flapping louvers or dampers during incremental weather. Damper system prohibits pests or rodents from entering the vent. When dryer is turned on, the air forces the damper open allowing the air to exhaust. When dryer is turned off, the damper is pulled to a secure, closed position. UV resistant coating to prevent the cap from discoloring. Paintable. Includes 4" x 10" aluminum tail piece. Can be used in conjunction with brick, concrete, or siding. Retail boxed with installation instructions. White.