The Nutone bath fan upgrade kit lets you convert your old bath fan to a brand new unit in just minutes with no special tools. It improves performance by boosting air movement up to 20 percent, cuts sound levels in half and helps control mold and mildew-causing humidity. Bathroom fan upgrade kitNo rewiring neededAbout a 10 minute installationNew motor reduces sound up to 50%Improves air movement up to 20%Helps control humidity that causes mold and mildewKit has everything needed to installIncludes 2 motor plates to fit most economy fans