Deflecto AO48/20-A 8-Ft. Semi-Rigid Flexible Aluminum Duct (4 In. Diameter)
• Class 0 duct;• Ideal for exhaust venting bathroom vents, clothes dryers, range hoods, suspended ceilings, and more;• Can be cut to length for specific venting applications;• Made from fire-resistant aluminum alloy; non insulated and non crimped;• Flexible enough for easy installation;• Will not sag, collapse, or bunch up for improved air flow;• Maximum velocity: 5,000 FPM;• Operating temperature range: -100deg F to 430deg F;