Broan-NuTone AE110 Invent Flex Energy Star Qualified Single-Speed Ventilation Fan, 110 CFM 1.0 Sones, White & Builder's Best 084635 Galvanized Steel Roof Vent Cap. Damper, 4'' Diameter Collar, Black

• HIGH-QUALITY FAN: Quiet, energy efficient exhaust fan operates with 110 CFM and 1.0 Sones to help control air quality is powerful enough for rooms (including bathroom) up to 105 sq. ft. Duct Diameter 4 inch EFFICIENT: Powerful ventilation reduces humidity to quickly eliminate fogged mirrors and manage moisture at 110 CFM, so your vision will always be clear and your surroundings will always be comfortable EASY INSTALLATION: Easy to install new/replace existing product with retrofit installations that can be done entirely from the room-side – no attic access required RELIABLE PERFORMANCE: With our TrueSeal Damper Technology, InVent fans reduce air leakage by up to 50% compared to competitive models, resulting in better home performance via blower door tests and reducing cold and warm air backdrafts Extremely Durable: This is a heavy duty 26 gauge galvanized roof vent hood with a high performance polyester powder coated finish. Protection Against Corrosion: Our vent caps are ASTM B117 tested for anti-corrosive properties, showing very little or no signs of corrosion on our high performance polyester powder coated galvanized steel surface. Other leading and foreign brands have little or no corrosive protection. Features: Riveted construction. does not use caulk. Includes pre-drilled holes for easy mounting. Vent also comes with a flapper (damper) that prevents back drafts. Ideal for bathroom or kitchen vents. Screens are removable so that caps can be used for venting clothes dryers as well.