VEVOR 4 to 4.5 inch Radon Mitigation Fan System, Quiet 260 CFM Radon Mitigation Kit with 2 Couplers, Waterproof Radon Fan Electric Inline Duct Fan Exhaust Fan for Indoor Outdoor Ventilation

VEVOR 4 to 4.5 inch Radon Mitigation Fan System, Quiet 260 CFM Radon Mitigation Kit with 2 Couplers, Waterproof Radon Fan Electric Inline Duct Fan Exhaust Fan for Indoor Outdoor VentilationQuiet 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: 6.61 lbs / 3 kg (US), 7.94 lbs / 3.6 kg (EU)