Lambro Inc.'s insulated flexible ducts are designed for use in residential, commercial, and institutional building installations within the HVAC sector. All insulated flexible ducts comply with Canadian standards c-UL-us (ULC S-110) and are equipped with official labels certifying their compliance. In addition, they meet the requirements of NFPA 90A and 90B standards.

Our product line offers several options, including an aluminized, reinforced tri-directional fiberglass scrim or black polyester vapor barrier. Available with a range of insulation values, including R4,2, R8, and R12.

Lambro Inc.'s non-insulated flexible ducts are designed for use in residential, commercial, and institutional building installations within the HVAC sector. All insulated flexible ducts comply with Canadian standards c-UL-us (ULC S-110) and are equipped with official labels certifying their compliance. In addition, they meet the requirements of NFPA 90A and 90B standards.
(not intended for dryer application)

Engineered for insulating semi-rigid or rigid round ducts, our sleeves are offered with either an aluminized, reinforced tri-directional fiberglass scrim or a black polyethylene vapor barrier, and are available in R4,2 or R8 insulation values.

Our semi-rigid duct is made from durable aluminum and is sold compressed in diameters ranging from 4 to 12 inches. It is also available uncompressed in diameters from 14 to 24 inches.