Air Vent 53847 All Season Roof Mounted Power Attic Ventilator, Black N/A Length: 60"

Length: 60"

Single-piece construction - no welds

twist your hand in one quick

Design factor: 4 to 1

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Air Vent 53847 All Season Roof Mounted Power Attic Ventilator, Black N/A Length: 60"Roof mounted power attic ventilator with adjustable thermostat from 60 to 120 degrees & adjustable humidistat from 20% to 90%. Thermostat runs fan in summer. Humidistat runs fan in winter. 4. 3 amp motor, 6 bladed fan blade. 14 1 2" diameter opening. Needs 720 sqin of net free intake area. Black color 25" diameter metal dome, 1500 CFM Ventilates up to 2100 sq. ft. With adjustable thermostat from 60 to 120 degrees & adjustable humidistat from 20% to