Hon&Guan 3-8inch Flexible Ducting Dryer Vent Pipe Aluminum PVC Duct Fan Hose 10M

(Hon&Guan 4" Grow Tent Ventilation Inline Duct Fan Carbon Filter Hydroponic Kit. Light Resist: Thick layer of Black PVC on this ducting prevents light leaks. 1)Thick layer of Black PVC on this ducting prevents light leaks.

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