Broan-NuTone BP90 Replacement Grille For 688 Fan

The Broan-NuTone BP90 Replacement Grille 688 Fan is a ventilation cover component used to cover the outlet openings of exhaust fan assemblies in HVAC systems. It is installed on the fan housing and airflow outlet, and it enables air that is pulled in by the internal fan to pass through the vent openings and cover the internal parts. Its frame is in line with the fan housing aperture and is held by spring clips, which lock the grille to the unit. It is mounted at the outlet in the ceiling to the ventilation assembly and is the visible air.