Jabsco 4" 250 CFM Flangemount Blower - 12VJabsco 4" 250 CFM Flangemount Blower 12V is built to deliver powerful, reliable ventilation in marine and harsh environments. With a compact flangemount design, this DC 12V blower moves up to 250 CFM of air, ensuring quick air exchange in confined spaces while keeping current draw low for extended battery life. Key design highlights include a tough reinforced plastic housing that resists corrosion and stands up to saltwater exposure, a 4" flanged