- Wire helix multi-ply foil duct designed for low to medium operating pressures in HVAC systems
- Class 1 air connector label meeting NFPA (90A and 90B)
- Tear and puncture-resistant
- Encapsulated wire helix does not unravel when cut to length
- Air-tight construction and smooth inner core
- Multi-ply design of metalized polyester and aluminum/polyester laminate
- 3 in Dia has 3/4 in pitch
- Length: 50
- Material: Aluminum/Polyester
- Outside Diameter: 4 in
- Temperature Rating: -20 to 180 deg F