Ventilation Kit, 6 Inch 350 CFM Inline Carbon Filter with Fan Speed Controller and Thermohygrometer, iPower

6 Inch 294 CFM Duct Inline Fan Blower: Composite fan blades and center hub which reduces noise and vibration.
6 Inch 1050+ IAV Australia Charcoal Filter: One of the world's most absorbent carbon available; Dimensions: 6" Flange Ducting x 16" 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.
FREE High Reliability & Accuracy Humidity Monitor: Fast response that measures every 10 seconds , wide measuring range that measures temperature from 14? to 122??-10?~50?). Humidity sensor measures humidity from 10% to 99%. Powered by 3V CR2032 button battery (included).
Multi-functional: 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.