Deflecto A045/9 Semi-Rigid 4-In. Diameter x 5-Ft. Aluminum Duct
• 4-in. diameter x 5-ft. Class 0 air duct with non-crimped ends;• Ideal for exhaust venting, bathroom venting, range hoods, suspended ceilings, and more;• Semi-rigid yet flexible for easy installation;• Fire-resistant;• 100% aluminum;• Uninsulated;• Max. velocity: 5,000 FPM;• Operating temperature range: -100deg F to 430deg F;