Black Flexible Ducting Hvac Ventilation Air Hose For Grow Tents,, 16 Feet Long. Product Features LOW NOISE SILENCER: designed for reducing noise from fans and carbon filter systems, can decrease the noise by up to 50%. 5" DUCTING LIGHTPROOF: Thick layer of Black PVC on Hon Guan ducting prevents light leaks. Works with exhaust and intake fans, carbon filters and hooded lights which are 5" in diameter 3-LAYER TOUGH: Keep your ventilation system free of rips and pin holes. 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 FLEXIBLE AND EASY TO USE: Hon Guan 5 Inch Duct is super flexible and easy to install, it will slide right on your Duct Fan, Vent Exhaust, Carbon Filter or Light Reflector.This Ventilation Duct is 5 Inches in diameter and comes in one 16 Feet Long Piece, which can be cut into as many pieces as you need using a wire cutter and a paper knife VARIETY OF APPLICATIONS: Hon Guan Ducting Is suitable for HVAC system. It will move and deliver air in Kitchens (cooking exhaust), Green Houses and Grow Rooms (Air Circulation, Intake, Exhaust and Light Fixture Cooling), Bathrooms (Smell and Moisture Exhaust), Dryer Rooms, Grow Tents and other applications etc. Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!