Broan 690 60 CFM Bathroom Fan Upgrade Kit Upgrading bath fan performance is easy with our all-in-one kit. NO rewiring. NO new duct work. NO hassles. ALL in just 10 minutes New motor (60 CFM and 3.0 Sones) reduces sound up to 50 percent, improves air movement up to 20 percent and helps control humidity that causes mold and mildew New Grille: Upgrade your bathroom's look with a modern white grille Wrench: No special tools are required. The kit has everything you need including new components, a wrench, fasteners, and complete step-by-step instructions Two motor plates included to fit most economy fans