Based on your location it seems like you might be looking for the Canadian site.
Would you like to continue, or switch to the Canadian site?
Broan-NuTone® 4-Inch Grille for Broan® In-Line Ventilators
Use the Broan-NuTone® 4 in. Grille for In-Line Ventilator with ceiling or wall ventilation applications. The grille is suitable for supply and exhaust applications. The grille offers an attractive design that blends with any decor.