Broan S97012038AMZ Bathroom Fan Motor Assembly Brogan replacement motor, blade and grille for model: 678A-F Motor specifications: 50 CFM, .9-Amps; 120-Volts Overall grille Dimensions: 11-3/4-inch by 10-5/8-inch Lens Dimensions: 6-15/16-inch by 7-15/16-inch