Features:

• Ducting: Material: aluminum foil + PET; size: 4 inches (diameter) x 8 feet (length) when fully extended. Temperature endurances range from 0 ~ 185°F. (-18℃ ~ 85℃). 1 pair of 4-inch metal clamps made from stainless steel.
• Mini construction fan and rope hanger: Size: 4 inches; voltage: 120V; current: 0.45A; frequency: 60Hz; power: 28W; air velocity: 195 CFM; speed: 2500 RPM. Noise level: 30db. Free pair of 8-ft adjustable ratchet clip hanger rope: hold up to 150 lbs.
• Air carbon filter: Air flow: 220CFM; Size: 4 inch; flange ducting: 12 inch length; 1200 + IAV Australian RC412 activated carbon. Hook design, easy to hang. Pre-filter included
• Variable speed controller: One control switch for 3 settings, OFF, HIGH, MED, LOW. Humidity monitor: Fast response that measures every 10 seconds. Measuring range: temperature from 14℉ to 122℉（-10℃~50℃) and humidity from 10% to 99%.
• Package includes: 1 x 4inch 195 CFM inline duct ventilation fan; 1 x 4inch air carbon filter; 1 x variable speed controller; 1-pair 1/8 inches 8 feet long rope hanger; 1 x 4inch 8 feet aluminum ducting with 2 clamps

Details:

iPower 4 Inch 195 CFM Upgrade Inline Fan, Air Carbon Filter, 8 Feet Ducting Speed Controller Rope Hanger, Exhaust Blower for Grow Tent Ventilation