Broan Model 509 8" Direct Discharge Ventilation Fan (180 CFM)

Eliminate humidity from laundry rooms, tobacco smoke from rec rooms and workshops, or cooking fumes from kitchens with Broan's high-efficiency utility ventilators. Features: 180 CFM 6.5 Sones. Specially designed polymeric fan blade. Housing adjusts to fit walls from 4-1/2? to 9-1/2? thick. Permanently lubricated motor with "twist-lock" installation. Built-in damper minimizes backdrafts. 11-1/2" square plastic grille