iPower 4 Inch 118 CFM Inline Filter 25 Feet Ducting with Fan Speed Controller Temperature Humidity Monitor and Rope for Grow Tent Ventilation, Black

Key features

• 4 Inch 118 CFM Duct Inline Fan Blower: Composite fan blades and center hub which reduces noise and vibration.
• 4 Inch 25 Feet Uninsulated Aluminum Ducting + 2 Stainless Clamps: Flame-retardant coating and corrosion-resistant wire helix; Temperature endurance range from 0 ~ 185°F. (-18℃ ~ 85℃).
• 4 Inch Filter: Dimensions: 4" Flange Ducting x 12" Length; Reversible flange. Free Pre-Filter included: We recommend replace the Pre-Filter every 6 months to protect your filter.
• Fan Speed Controller: Variable Speed, Off, High, MED, Low. To avoid the risk of burning out the fan motor, controller does not adjust below 50%. Free Pre-Filter included: We recommend replace the Pre-Filter every 6 months to protect your filter.
• Multifunctional: This ventilation combo removes heat and eliminate the undesirable ill-smelling odors in the grow tent to solves air delivery problems without major system rework or expense.