Lambro 302DL 8-Ft. Flexible Aluminum Semi-Rigid Double-Lock Air Duct (4 In. Diameter)
• Double lock is an airtight and leakproof seam;• Recommended for bathroom fan, kitchen range hood, and general exhausting;• Do not use for clothes dryer installations (UL(R) 2158A duct must be used);• Excellent strength and flexibility;• Minimum bend radius to the center line is 1 diameter;• Easily cut to size and hand-formed;• Aluminum is corrosion-resistant;• Non-combustible;• Flame-resistant;• Maximum operating temperature of 430deg F;• Installation clamps not included;