If you are trying to eliminate the bad odor in your indoor garden， then this combo set is for you! This combo set is cleaner and fresher for you and your plants. Control odor for better privacy in the comfort of your own space. Easy to use and install， safe and environmental friendly， there is no need to suffer from the musty air conditions of your gardening anymore!

Contents of the combo:

• iPower 4 x 12 Virgin Carbon Filter 
• 4 iPower Inline Duct Fan 190 CFM 
• 4 x 8 Non-Insulated Air Duct， 8 feet long 

• Allows the scrubbing of a charcoal filter! 
• Permanently lubricated bearing requires zero maintenance 
• Composite fan blades and center hub reduces noise and vibration 
• Essential equipment for positive pressure ventilation 
• Versatile installation; works in greenhouse， attic， bathroom， and warehouse. 
• 190 CFM 

• Pre filter included 
• High quality Australian virgin activated RC 412 carbon 
• Aluminum construction: weighs 50% less than the competition 
• 48mm carbon bed: 10% more carbon than the competition 
• Up to 2 years in life expectancy 
• Large mesh openings for a highly effective scrub 
• Designed for enclosed environment 
• 4 flange x 12 height 

• Made from high quality aluminum， not only does the duct act as in intake and exhaust piping for active-cooled fixtures and reflectors， but also stores and dissipates heat at a steady rate， reducing room temperature fluctuations. 
• 2-ply， double layer construction for durability 
• Fire-resistance coating ensures maximum safety 
• Temperature range from 0 to 185+ F 
• 4 diameter x 8 feet long