Allegro 20" Diameter Ducting (25' Length). This product is lightweight, retractable, and designed for maximum air handling capabilities. Dual direction flow with minimum friction loss.

CONSTRUCTION:

• Vinyl and polyester materials
• Single-Ply
• PVC-coated
• Temperature Range: -20° F to 180° F (-28.8° C to 82.22° C)
• Retractable, non-collapsible design
• Class 1 hard drawn spring steel wire helix
• Meets ASTM 227 specs
• Meets flame retardant requirements of UL94V-0
• Yellow color with black weather-strip
• Fastening cuffs at both ends