Broad Compatibility: S97015157 Fan is compatible with 680, 680FL, 2680F, 680FL, HD50, 676-D/2676F-A, 684-D/2684F-A, 684NT-A, 646D, 672SP, 674-A, DX110, 110RDB, 110RDF, ensuring versatility in replacement options. Whisper Quiet Operation: S97015157 is deliver a tranquil environment by efficiently removing excess air, moisture, and dust, promoting superior air circulation and indoor air quality Effortless Installation: Simplified plug and play setup allows for swift replacement without the need for specialized mechanical skills. Reconnecting the exhaust pipe is essential, but the unit can be installed quickly in just minutes without removing it from the ceiling Cost effective Solution: Save on expenses by opting for the S97015157 motor component instead of purchasing a new bathroom fan. This assembly not only restores fan functionality but also enhances airflow and reduces noise levels compared to its predecessor Customer Service: Whether it is installation or during daily use, if you come across any issues – please don't hesitate to reach out to us, and we will definitely give you a satisfactory response. new S97015157