Spruce HomeAire 4 in. Inline Duct Boost Fan

The HomeAire 4 in. Inline Duct Boost Fan is designed to give an old heating and cooling system the lift necessary to push conditioned air into existing or newly expanded living or working areas as well as any other areas where it is needed. They improve system efficiency and provide better energy efficiency. This Inline Duct Boost Fan is pre-wired with a 72 in. L 3-prong power cord and junction box. This inline duct boost fan has durable plastic fan blades attached to a thermally protected motor in a lon...