LOOTICH Strong 4" Air Duct 25 FT Long Black PVC Flexible Aluminum Ducting with 2 Stainless Steel Clamps 4 Layer HVAC Ventilation Hose for Grow Tents Dryer Rooms House Vent Register Lines

• 4" DUCT with Adjustable length: This Ventilation Duct is 4 INCH in inner diameter (about 102mm) and 25 FEET Long (about 8.0m fully extended length), Steel wire space (25mm), Outer diameter: about 106-110mm
• Lightproof 4 INCH Duct: Thick layer of Black PVC on this ducting prevents light leaks. Works with exhaust and intake fans, carbon filters and hooded lights which have duct opening 4 Inches in diameter
• 4 Layers Sturdy Air Duct: Keep your ventilation lines 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
• Easy Installation: Free pair of 4-inch metal clamps made from stainless steel. Flexible length for exhaust fan blower / inline fan
• Application Scenarios: Our Ducting is suitable for any Heating Ventilation & Air Conditioning (HVAC), Kitchens, Dryer Rooms, Bathrooms (Smell and Moisture Exhaust), Greenhouses, Grow Rooms and Tents, etc.

Advantages >Flexible length: about 8m extended length >Steel wire space: 25mm >Inner diameter: about Ø102mm >Outer diameter: about Ø106-110mm >Diameter of steel wire: Ø 1.0mm >Outer layer: Light leak proof PVC >4 LAYER thickness: PVC + Aluminum Foil + PET + Aluminum Foil. >Interlocking steel strips to form an air tight and leak proof system. >Each ducting unit includes a pair of metal clamps made from stainless steel. >This ducting is easy to bend to install in hard to reach spaces such as grow rooms, attics, crawl spaces, etc. >This ducting is made with aluminum reinforced with a spiral-wire, designed to prevent the ducting from unraveling when cut into smaller pieces. >Fire Proof Coating: Flexible ventilation ducting made from high-quality flame-retardant aluminum and built-in corrosion-resistant wire helix for reinforcement and lasting performance >This duct hose can withstand hot temperatures up to 180°F (-18℃ ~ 85℃). FAQ: What are the recommended uses for this flexible duct? This duct is designed for applications such as kitchen vent hoods, dryer room, Heater ducting, HVAC air lines, indoor gardens, grow tents and bathroom exhausts. Can this duct be used as a portable AC Hose? Not a good choice for portable AC applications. It will accumulate and dissipate heat exhausted by AC and keep it from coming out of the window. We recommend using a plastic duct for AC exhaust purposes, plastic will not accumulate or dissipate heat until it reaches the window exhaust. Can this duct be used as a portable vacuum/leaf sucker hose? No, this duct is made with Double layer of foil and a Black PVC plastic layer and is designed to transfer air. Debris transferred by vacuum will puncture the flexible ducts. Package >1x PVC flexible ducting >2x Steel clamps