Description
Thermo-efficient insulated Heating & A/C Duct.
Black CPE Core (bonded to coated wire helix) easily expands over fittings & supports thick blanket of fiberglass insulation.
#471 has fiberglass reinforced metalized cover.
Rated R-4.2.
Operating temperatures (-29° to +121°C).
Meets UL 181, NFPA 90A and 90B.
Specifications
MFG #:471-7000
| Size7"
Size
7"
Warning
This item may be known to the State of California to cause cancer, birth defects, or other reproductive harm.
Barcode
704917009438