Galvanized housing with plated sound absorbing finish for humid conditions and various attic temperatures. Attractive molded grille with diffuser designed for LED applications and spring clips for smooth fit against ceiling or wall. Dishwasher safe grille for easy cleaning. Permanently lubricated ball bearing motor, capacitor driven and rated for continuous operation. Designed for ultra low RPM for quiet operation. Centrifugal polymeric blower wheel with unique two way air dissipation for maximum airflow and quiet operation. Built-in junction box for easy wiring.