Gray Flexible Aluminum Foil Air Vent Duct

• Material: aluminum + PET, outer layer with PVC film;
• Light Resist: Thick layer of Black PVC on this ducting prevents light leaks. Works with exhaust and intake fans, carbon filters and hooded lights which are 4" in diameter.
• High quality: Under the Black PVC layer our ducting is built with 2 layers of Aluminum Foil With a layer of PET and Steel Wire Helix to preserve the shape,keep your ventilation system free of rips and pin holes.
• Low Noise Silencer: designed for reducing noise from fans and carbon filter systems, can decrease the noise by up to 50%.
• Variety of Applications: HVAC, Bathroom, Greenhouse, Grow room and Tent and so on.

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