Hon&Guan 4" Inline Duct Mixed Flow Extractor Fan With Smart Controller
Hon&Guan Inline Duct Fan 125mm 150mm Extractor Fan for Hydroponics and Grow Tent. Hon&Guan 4" Grow Tent Ventilation Inline Duct Fan Carbon Filter Hydroponic Kit. Hon&Guan 100mm Duct Fan With 2.5M Air Ducting PVC Aluminium Foil Flexible Hose.