16 in. x 25 ft. Insulated Flexible Duct R4.2 Metalized Jacket is used in HVAC Heating and Air Conditioning systems and venting applications. This insulated R4.2 rated class 1 air duct comes with a polyethylene sleeve and blacl poly exterior jacket. The duct is ETL listed, meeting the UL181 standard.
- R4.2 fiberglass insulation for improved energy efficiency and noise absorption
- Polyethylene sleeve separates airflow from insulation
- Cut to length for each specific application
- Can be used in supply, return and standard exhaust applications
- Ideal for duct systems within the conditioned space
- Not for use in kitchen hood exhaust systems
- Consult your local building codes for approved installation practices