Catalog number: RFD-520S Features: ● Comes with a reducer with a narrowed nozzle that is compatible with blowers of various diameters. ● Does not easily collapse even when bent, and allows easy connection of ducts to each other. Specifications: ● Duct diameter (mm): 520 ● Length (m): 5 ● Connection diameter (mm): 550 ● Body fabric thickness (mm): 0.33 ● Maximum diameter of compatible blower (mm): 520 ● Color: Orange ● Reducer diameter (mm): 550 ● Air duct, standard type ● Heat resistance temperature (℃): 50℃ ● Certified by the Japan Fire Retardant Association ● Comes with reducer ● Hanging hardware (SWM-B) Material/Finish: ● Base fabric: Polyester fiber fabric ● Surface treatment: PVC sheet laminated
