The RS Series Inline tube fan, durable powder coated steel housing, reverse curve impeller. Can-Fan® bring its innovation to market and sets a new standard for performance. The outstanding performance of our fans set them apart from the competition. The RS family of inline exhaust fans provide the power and flexibility needed for residential and commercial applications. The RS inline is available in sizes 4" through 12" in both standard and high output. The RS series all utilize the extremely reliable external rotor motor and reverse curvblade. Each fan comes pre-wired with an 8’ - 120 volt power cord. 5 year warranty. Specifications 2640 RPM Volt 115 Max Watts 68 Max amps 0.69 Diameter: 11.26 in Width: 8.19 Blade Design: Reversed Curve Housing: Metal with Powder Coating Inlet/Outlet: 3.94 in Speed Controllable: Yes