Adjustable Ropes for Fit: Fitted with adjustable ropes, this hose s a tight and fit around any duct size, enhancing airflow and overall performance. The easy adjustment process simplifies installation and prevents leaks. D-Shaped Rings for Easy Installation: This hose features D-shaped rings for effortless hanging on walls or posts, allowing for flexible positioning and straightforward setup. The rings provide attachment and easy adjustment for placement. Construction for Tough Conditions: Constructed with industrial adhesive tape and a reinforced high carbon wire spring, this hose is built to withstand harsh environments, functioning effectively in temperatures from -22° to 212°F. Retractable Design for Space Saving: The retractable design of this hose allows for easy storage and handling. It compresses to a compact size when not in use, saving space in workshops, garages, or storage areas while eliminating bulkiness. WIDE APPLICATION: Our hose designed for ventilation applications including duct fans and vent exhausts in factories, basements, farms, chemical, tunnel and automobile manufacturing, ect, Manufacturer: DUBTEDHOU