Attwood Water-Resistant Turbo In-Line Bilge Blower The first vane axial-flow fan bilge blowers designed using aerospace technology to maximize performance. No other bilge blowers in the industry provide such powerful system output at such a low power input in a compact size. Patented in-line design provides ventilation for engine compartments, galleys, bilges, and heads. Mounting feet allow vertical or horizontal installation in confined spaces. Install with 10 fasteners. Individual carton incl