Attwood Turbo Blowers are the first axial-flow fan bilge blowers that are designed using aerospace technology to maximize performance under the real-world pressures of a marine system. The Patented in-line design provides ventilation for engine compartments, galleys, bilges and heads. Mounting feet allow vertical or horizontal installation in confined spaces. The new improved 3 inch design offers quieter operation. The Turbo 3000 Blower draws 2.7Amps, 12Volt DC and uses 3inch ID hose. Fuse size is 4Amp. Open Flow CFM: 145. Typical In System CFM: 100. Install with #10 screws. Individual carton includes: 2 - tie straps.16 gauge, caulked copper wire leads with optional B1 bullet-style or MP1 molded rubber connectors. All are CE certified. Water-resistant blowers include a 3 Year Limited Warranty. White in color. Dimensions: 5-1/2inch L x 5-1/16inch W x 3-5/8inch H. 1 per package.