Deflecto F0450 Supurr-Flex 5-Ply 4-Inch Aluminum Flex Duct (50 Feet; Nonretail Bulk)

• 5-ply Supurr-Flex(R) dryer transition duct;• Superior fire suppression;• Can also be used in bathrooms, HVAC systems, and general-purpose venting;• Maximum velocity of 4,000 FPM;• Compresses to 25 ft., +/-15 in.;• Operating temperature range 0deg F to 265deg F;• 50 ft. long ;• Nonretail bulk;