"This compact in-line fan is powerful enough to deliver ventilation in long duct runs. The corrosion-proof ABS plastic housing makes this fan suitable for bathroom exhaust, radon mitigation, greenhouse ventilation and general purpose ventilation up to 140F. Fan Diameter in. 6, Amps 1.5, HP 1/4, Needs to be Hardwired No, Volts 120, Dimensions L x W x H in. 12 x 15 1/4 x 15 1/4, Speeds qty. 1, Air Delivery CFM 530, Dimensions L x H in. 12 x 15 1/4. Fan speed can be adjusted with optional plug-in fan speed control Item# 517263 8-ft. grounded power cord Comes with mounting bracket and insulated tape for sealing pipe connections Sealed rotor motors require no maintenance"