VEVOR 4" to 4.5" Radon Mitigation Fan System Kit Quiet 260 CFM Inline Duct Fan

VEVOR 4" to 4.5" Radon Mitigation Fan System Kit Quiet 260 CFM Inline Duct FanQuiet OperationHigh Airflow ExhaustQuality AssuranceEasy InstallationVersatile ApplicationPlug-and-Play ConvenienceMaximum Speed: 2700 RPM,Item Model Number: HEE-100P,Airflow per Speed Setting: 260 CFM,Rated Power: 75 W (US) / 51 W (EU),Maximum Airflow: 260 CFM,Product Dimensions: 12 x 12.6 x 9.25 inches / 305 x 320 x 235 mm,External Diameter of Inlet and Outlet: 4-4.5 inches / 98-114 mm,Net Weight: 7.9 lbs / 3.6 kg (US), 9.26 lbs / 4.2 kg (EU)