Feature: 1. 6 blade fan design maximizes airflow and efficiency, more reliable and practical, extremely low current consumption, high air volume and long service life, sealed motor shaft moisture, better performance. 2. ABS plastic, corrosion resistant, reliable use, built‑in mounting feet for easy vertical or horizontal installation. 3. For Marine environments, waterproof motor housing for 4in diameter hose to provide ventilation for engine compartment, galley, bilge and bow. 4. Easy to install, no complicated tools required, convenient to use, save time and effort. 5. Manufactured according to the original production specifications, in line with strict quality standards. Specification: Item Type: Bilge Air Blower Material: Engineering plastics Maximum Wind: 270cfm / 456cmh Rated Current: 3.0A Fuse Current: 5.0A Inlet Diameter: Approx.105mm/ 4in . Package List: 1 x Bilge Air Blower1 x Manual