Yes — most Broan/NuTone replacement fan assemblies that include the motor, blower wheel, and mounting plate are built on a plate that measures about 7″ × 7″. Depending on the exact model, the plate dimensions can vary slightly (e.g., 7.31″ × 7.0″ or 7½″ × 7⅛″), but they are designed to fit housings in the 7″ range.