Broan Model 512 6" Room-to-Room Ventilation Fan (90 CFM)

Broan's Room-to-Room Ventilation fans provide airflow of heated or cooled air from one room to another. Features: 90 CFM 3.5 Sones. Housing fits walls up to 5-1/8" thick. Use with Broan Model 57W or 57V variable speed control or 69W/69V switch (available separately). Easy interior wall installation. Permanently lubricated motor. High-strength, reinforced polymeric fan blade. Two attractive white polymeric grilles can be painted to match decor. 8" diameter round plastic grille