Ensure outstanding ventilation in your boat’s engine compartment with the Attwood Turbo 4000 4" In-Line Blower. Engineered with an advanced, aerodynamic fan blade design, this blower moves an impressive 230 cubic feet of air per minute (CFM) while drawing minimal power.

Its specialized water-resistant design makes it highly reliable in humid, splash-prone marine spaces, providing critical ventilation to clear dangerous fuel vapors from your bilge before starting the engine.

Technical Performance & Design Features

• Advanced Axial Flow Design: Features a unique five-blade fan system paired with internal housing curves to maximize airflow and minimize structural turbulence. It delivers up to 25% more efficiency than standard flat-blade blowers.

• Water-Resistant Motor Enclosure: Built with a sealed motor casing, potted wire leads, and a corrosion-resistant nickel-plated motor to lock out moisture, humidity, and bilge splashes.

• Whisper-Quiet Operation: The precisely balanced fan blade and rigid, glass-filled nylon housing eliminate high-frequency motor whine and vibration rattle.

• Flexible Installation: Includes molded-in mounting feet that allow for easy horizontal or vertical securing directly to structural bulkheads or stringers. The extended intake and exhaust collars easily slip into standard 4-inch flexible ventilation ducting.

Specifications