LOOTICH Strong 4" Air Duct 8 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

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 4" DUCT with Adjustable length: This Ventilation Duct is 4 INCH in inner diameter ( about 102mm) and 8 FEET Long (2.5m fully extended length), Steel wire space (25mm), Outer diameter: about 106-110mm 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., Weight: 1.0141264052 Pounds, Manufacturer: LOOTICH