4" Flangemount Heavy Duty Blower - 24V - 250 CFMThe powerful flangemount blower is designed for use wherever continuous ventilation is required. A motor life of 5,000 hours is guaranteed for service in the toughest conditions.Features:Extended life 5,000 hour motorThey provide outputs of 250 cfm (7.1m3/min)24V DCTough reinforced thermoset plastic housingMounts to any flat surfaceSlip-on inlet ducting connectionEfficient high volume air flowLow-current drawCorrosion-resistant materials throughoutN.M.M.A. type acceptedMeets USCG Electrical Regulations of Title 33*Sold as an Individual