Vortex Powerfans VTX400 220 CFM 4" Inline Fan is high performance inline duct blowers constructed from quality steel with heavy duty attractive hammertone powdered coat finish. Specifically designed for warm and humid applications. Can eliminate some of the most undesirable odors, pungent smell and particulates from indoor grow tent, hydroponics grow room. Carbon filters with built-in 4" flange and an antibacterial pre-filter included. It comes with an Aluminum top and bottom to reduce weight and increase ease of installation. 51% perforated open area for maximum airflow. 1.8" bed depth of pure virgin activated Australian lightweight granular carbon. Large selection of sizes to meet all your air filtration needs. Technical Description : Extended collar and lip; allowing easy duct hook-up Impact-Resistant; sound-absorbing heavy gauge steel casing Rustproof hammertone powder coat epoxy finish Permanently lubricated balanced motor, which ensures long life 100% speed-controllable, factory-installed 120v power cord Detailed Description : 100% speed controllable easing air flow adjustment Suitable for airstream temperatures up to 140ºF (60ºC) Prewired with 120V power cord Permanently lubricated sealed bearings External rotor motor with automatic reset thermal overload protection Aerodynamic design allowing more air flow Horizontal and vertical installation. ETL listed AMCA air listed Item model number: VTX400 Carbon filters with built-in 64flange and an antibacterial pre-filter included. It comes with an Aluminum top and bottom to reduce weight and increase ease of installation. 51% perforated open area for maximum airflow. 1.8" bed depth of pure virgin activated Australian lightweight granular carbon. Large selection of sizes to meet all your air filtration needs. Model 4 x 16 Recommended Maximum CFM 235 Flange 4" Outside Diameter 7.5" Height 12 in 30.5 cm/16 in 40.5 cm Weight 7.1lbs/8.2 lbs Carbon Bed Width 1.8" (46mm) Recommended Fan VTX400, VBC400 Pressure Drop at Max CFM 125pa/.0.5"wg Package Includes : 1 x Vortex Powerfans VTX400 220 CFM 4" Inline Fan1 x Power Cord1 x Easy to install-mounting brackets 1x Vortex Pro-Lite Filter 4" x 16" Carbon Filter/1x Vortex Pro-Lite Filter 4" x 12" Carbon Filter