This bathroom vent fan motor is a top - notch choice for bathroom ventilation. With a 120 V, 60 Hz, and 1 A power operation, along with a 50 CFM airflow and 3000 Rpm speed, it ensures a powerful and efficient air exchange. The fan blade is sized at 4 5/8 in. by 1 1/8 in. and the shaft is 3/16 x 1.5 in. with splines, providing a perfect fit. The 6 1/2 in. wire with a 2- prong plug simplifies the installation process. It has achieved UL certification, which means it is stable and durable. The kit comes with a motor, a fan, a ventilation fan motor, and a blower wheel, and it can replace many popular models like 663, 668, 662, 688, 659 . Ideal for bathrooms, it offers a convenient and reliable ventilation solution, enhancing your indoor air quality and making your daily life more comfortable.