Monsoon Pro 100mm Inline Extractor Fan with Timer Monsoon UMD100TX / UMDPRO100T High extraction rate 300 - 576m³/h Aerodynamic case and diffuser for powerful pressure at low noise High-efficient two speed ball bearing motor, 40,000 hour service life Complete with mounting plate, can be mounted at any angle Suitable for mounting in parallel or in series Quick release impeller and motor block, easy maintenance The Monsoon UMD100TX Inline Extractor Fan with Timer provides powerful and efficient extraction with a high airflow rate of 300-576m³/h. Featuring an aerodynamic case and diffuser, this fan operates at a low noise level and has a long 40,000 hour service life thanks to its high-efficient two-speed ball bearing motor. Its versatile mounting options and easy maintenance make it a convenient choice for any space.. Brand National Ventilation Airflow Cubic Metres per Hour 300 m³/h Airflow Litres per Second 83.3 l/s Colour White Decibel Rating 34 dB[A] @ 3 m Width 178mm Dimensions (L)297 mm x (W)178 mm x (H)220 mm Ducting Size 100mm Frequency 50 Hz Guarantee 3 Years Height 220mm IP Rating IP44 Length 297mm Mounting In-Duct Number of Speeds 2 Operation Type Timer [2 - 30 mins] Packaging Types Each Power Rating 25W Product Range UMD Pro Mixed Flow Timer Range 2 - 30 Voltage Rating 230V