Master Flow ERV6SMWW Power Roof Mount Attic Fan Ventilators, 1500 CFM Tinners Size : 20 inch x

Size : 20 inch x 17

Formula is resistant to chemicals

Airflow CFM : 1000

Lid and bottom cover that double as a plates

Use with a brush or mini-roller

Master Flow ERV6SMWW Power Roof Mount Attic Fan Ventilators, 1500 CFM Tinners Size : 20 inch xHighlights: Airflow CFM : 1500 Weatherwood Net Free Area = 720 Sq. Ft. Pre wired roof mount attic vent and thermostat control Helps exhaust large amounts of hot and humid air from your attic Helps protect your roofing system and promotes your home's energy efficiency Energy efficient PSC (permanent split capacitor) Includes internal heavy duty screen which helps prevent animal infestation Energy efficient, uses up to 15% less electricity than typical