4" Flangemount Heavy Duty Blower - 24V - 250 CFMThe powerful flange mount blower is designed for use wherever continuous ventilation is required. A motor life of 5,000 hours is guaranteed for service in the most challenging conditions.Features: Extended life 5,000-hour motor They provide outputs of 250 cfm (7.1m3/min) 24V DC Rigid reinforced thermoset plastic housing Mounts to any flat surface Slip-on inlet ducting connection Efficient high-volume airflow Low-current draw Corrosion-resistant materials throughout N.M.M.A. type accepted Meets USCG Electrical Regulations of Title 33 *Sold as an Individual Specifications: Open Flow (CFM): 250 CFM Volts: 24v Box Dimensions: 11"H x 12"W x 14"L WT: 6.4 lbs UPC: 671880522144