VEVOR 6 inch Through-The-Wall Ventilation Fan, 110 CFM Through Wall Exhaust Fan with AC Motor, Quiet Vent Easy Installation for Bathroom,Garage,Laundry Room,Storage Room Air ExchangerRapid Air ExchangeInstallation GuidelinesYear-Round ComfortQuiet OperationVersatile ApplicationReliable UseSpeed (r/min): 1486 r/min,Fan Diameter: 6.3 inch / 160 mm,Maximum Airflow (CFM): 110 CFM,Voltage Frequency: AC120V 60Hz,Color: White,Item Model Number: BT-RTR25-AC1,Noise (dB): ≤46dB (Measured at 1 Meter),Net Weight: 2.65 lbs / 1.2 kg,Power: 20W,Main Material: Plastic PP (Panel),Item Dimensions (L x W x H Without Hose): 9.72 x 9.72 x 5.71 in / 247 x 247 x 145 mm (Min. Extension)