VIVOSUN 4 Inch 203 CFM Inline Fan with Speed Controller and Leather Sheath, 4 Inch Carbon Filter and 8 Feet of Ducting, Air Filtration Combo for Grow Tent Ventilation 4 Inch Silver

Advanced Made Easy: Don’t waste time buying and returning parts that may or may not be compatible or safe to use together; Three-part system includes every part you need to get set up
Powerful Inline Fan: Power: 68W; Current: 0.62A; Noise Level: 49 dB; Fan speed: 2500 RPM; 110V/60HZ; ETL recognized components
Premium Carbon Filter: Interior and exterior mesh construction provides 53% open area for free air flow; Item comes fully assembled with easy on/off pre-filter and reversible flange
Superior Carbon Quality: 1200+ RC 412 Activated Carbon delivers 100% filtered airflow; Charcoal bed thickness: 38mm
Sturdy Ducting + 2 Stainless Clamps: Strong, flexible steel wire supports heavy duty triple layer duct walls; PET core is sandwiched in layers of fire-retardant aluminum