8814R Fan Compatible with NuTone 671RB,8663RP B,8664RP B,8814 8663 8673,2.5 Sone Ultra Low Sound Fan,Compatible with Nutone 8814, 671,672RB. Model 8814 fans (without R) require the red area to be removed and used.（2.5 Sones）Not suitable for 8663RP B. Upgrade: Our fan uses a pure copper motor, greatly improving durability and lifespan, and also integrates a rigorously tested silent design, achieving ultra quiet operation of 2.5 Sone. In sharp contrast, inferior models usually use copper-clad aluminum motors, which, although cost-effective, have excessive noise and limited lifespan. Save you money&Easy to replace: Compared to purchasing a brand new bathroom fan, this motor component not only saves you a lot of costs, but also provides a simple and fast solution to restore the normal operation of your bathroom fan. Convenient replacement: No need for professional tools or skills, just follow simple steps to complete the replacement. The average installation time is only 10 minutes, greatly saving you time and energy. Quality Assurance: We offer a two-year quality assurance period for this product, which means that within two years of purchase, if any non-human factors cause product malfunctions, we will provide you with free repair or replacement services. compatible with 97017705 97017706 compatible with nutone 671rb compatible with nutone 8664rp compatible with nutone 8814 compatible with nutone 8814 8663 8673 compatible with nutone 8814r compatible with nutone 8663rp b unit compatible with nutone 8664rp b unit compatible with nutone model 8814r b unit compatible with nutone 8664 Compatible with Broan 750