Supply Fan w/Drive Package, Assembled Unassembled, Blade Diameter 30 in, Blade Material Steel, Drive Type Belt Drive, Exhaust Airflow @ 0.000 in SP 8, 867 cfm, For Cut-Out Height 32 1/2 in, For Cut-Out Width 32 1/2 in, Frame Finish Zinc Plated, Frame Material Steel, Guard Type None, Includes Drive Package, Includes Dehumidistat No, Maximum Airflow 8, 867 cfm, Maximum Noise Level 17.8 sones