4-LAYERS ALUMINUM FLEXIBLE DUCTING - Aluminum Foil + PET + Aluminum Foil and outer grey layer (PVC) ensure working on -22 to 266℉ environment. This insulation allows the hose to remain effective in extreme hot and cold temperatures.
LIGHTPROOF 4 INCH DUCT - Thick layer of grey PVC on this ducting prevents light leaks and repels heat from your light fixtures. Our exhaust hose works with exhaust and intake fans, carbon filters and hooded lights.
4 IN FLEXIBLE AIR DUCT - The ducting hose is also extremely flexible, can be contorted and manipulated into various shapes and tight spaces, so it will slide right on your Duct Fan, Vent Exhaust, Carbon Filter or Light Reflector.
STURDY AIR DUCT HOSE - Use Helically shaped and internally crimped galvanized steel strip designed, keep an air tight and leak proof, also steel Wire Helix to preserve the shape and provide additional strength and support to the body of the hose.
VARIOUS APPLICATIONS - Our 4in dryer hose is suitable for HVAC system, heat filters, greenhouses, kitchen vent hoods, HVAC air lines, dryer rooms, indoor gardens, grow tents and bathroom exhausts and other applications.