Refresh your bathroom in less than 10 minutes with the Broan-Nutone QuicKit , replacement motor, and cover/grille. This is an easy DIY that does not require wiring, cutting, or drywall repair. The QuicKit makes your bath fan up to 50 percent quieter and delivers up to 20 percent more power, keeping your air fresh and clean. The QuicKit is an easy, quick answer to a bathroom that is no longer working properly, is noisy, or simply needs an upgrad. 3.0 sones for quiet performance, enough sound to know your fan is on. sufficient ventilation to remove odors and moisture from your bathroom. HVI certified all air and sound ratings are designed, tested, and certified to ensure your product runs at peak performance. Compatible with Broan models 670, 671, 688, 689, EC50, ECF50, EC70, ECF70, ECH600, E050, and E070 - does not work with 8 inch x 7-1/4 inch housings. Compatible with NuTone models 693, 695, 696N, 695C, 695CB, 696NC, 696NCB, 690AC, 696N0, 6950 - does not work with 8 inch x 8-1/4 inch housings. Compatible with Nautilus models N671, N688, and Aira models VSBP50M, VSBP5XM, and VSBX50M - does not work with 8 inch x 8-1/4 inch housings.