Attwoods Turbo Bilge Blowers are the first vane axial-flow fan bilge blowers designed using aerospace technology to maximize performance. Using the same innovation found in all Attwood boat parts, Attwood engineers redesigned every element - motor, housing and fan - for the highest possible system efficiency and bilge blower performance. They succeeded in building the most effective turbo bilge blowers in the industry. Utilizing advanced fan blade design techniques, Attwood has developed a turbo bilge blower system that matches air flow of existing bilge blowers at a significantly reduced noise level. For the added durability known in all Attwood boat parts, Attwood incorporates an engineered plastic housing that resists deformation during installation and prevents blade to housing interference. Standard Patented in-line design provides reliable, high-output ventilation for larger engine compartments, bilges and heads. Mounting feet allow easy installation in confined spaces. Open-flow capacity 230 CFM at 13.6Volts DC; 220 CFM at 12 Volts DC. Draws 3.5Amps. Mounting feet are pre-drilled with 2 - holes for #10 screws. White in color. 1 per package.