Jabsco 4" 250 CFM Flangemount Blower - 12V. This Air Movement & Ventilation product from Jabsco has an efecient power and air flow at a low current draw making this the ideal battery-powered cooling fan for any boat. The Jabsco 4" 250 CFM Flangemount Cooling Blower mounts to any flat surface with a slip-on inlet duct connection and meets USCG Regulations 183.410 and ISO 8846 MARINE for ignition protection. This Jabsco Blower is constructed with the highest quality materials and workmanship making the Jabsco 4" 250 CFM Flangemount Blower w/ Reinforced Housing last a long time. Specifications for Jabsco 4" 250 CFM Flangemount Blower: Manufacturer: Jabsco Color: Black Voltage: 12 volts Features of Jabsco 4" 250 CFM Flangemount Blower Ducting: 4" Open Flow (CFM): 250 Volts: 12v Package Contents: Jabsco 4" 250 CFM Flangemount Blower Jabsco 35400-0000: 4" 250 CFM Flangemount Blower - 12V