HVAC Duct
The Lambro 4-inch x 8-foot flexible aluminum semi-rigid (crimp-lock) duct is ideal for general HVAC venting applications that require air expulsion from the home. Suitable for HVAC systems, our semi-rigid ducts ensure minimal air leakage and optimal performance, resulting in significant energy savings and improved indoor air quality.
The duct is ideal for new and replacement installations. The semi-rigid duct is flexible; the corrugations throughout prevent collapsing and allow for easy duct bending when needed. Aluminum is corrosion-resistant, non-combustible, and flame-resistant, with a maximum operating temperature of 430°F. When installing the duct, you can cut it to length to allow for stretching for maximum airflow.
A semi-rigid and lightweight non-insulated flexible duct, the manufacturing process uses a dead soft aluminum strip, spirally wound and mechanically joined together, forming an airtight and leakproof seam. This self-supporting and corrosive-resistant product provides excellent strength and flexibility and is adaptable to any low—to high-pressure heating, ventilation, and air conditioning system.
The minimum bend radius to the center line is one diameter. However, our recommended radius is 1 ½ diameters under accepted practice. The aluminum ducting can be easily cut to size and formed by hand.
Please be sure to check local building codes before installation.
Product features and benefits:
- Bulk pack
- Mechanical joint makes an air-tight seam
- Circumferential corrugations provide excellent strength and flexibility
- Minimum bend radius to the center line is one diameter
- Easily cut to size and hand-formed
- Aluminum is corrosion-resistant
- Non-combustible
- Flame-resistant
- Maximum operating temperature of 430°F
- Recommended for bathroom fan, kitchen range hood, and general exhausting
- Do not use for clothes dryer installations (UL 2158A duct must be used)
- Installation clamps (not included)
Product Contains:
(1) 4-inch x 8-foot flexible aluminum semi-rigid duct (crimp-lock)
Are you looking for our triple-lock series?
4-inch duct
