MODEL #: 4EFC-5S
$ 49.81
MODEL #: 4EFC-3S
$ 44.15
MODEL #: FL0450
$ 43.59
MODEL #: 3EFC-5S
$ 42.08
MODEL #: 3EFC-3S
$ 35.45
MODEL #: FL0350
$ 29.62
MODEL #: F0425
$ 26.08
MODEL #: FL0425
$ 20.15
MODEL #: FL0325
$ 15.38
MODEL #: HUPK8F
$ 15.35
MODEL #: 10-1876
$ 15.21
MODEL #: 100100017
$ 12.25
MODEL #: FC0408B
$ 10.31
MODEL #: F0408B
$ 9.40
MODEL #: A038/9
$ 7.31
MODEL #: F0405B
$ 6.32
Flexible duct connects supply registers to rigid trunk lines in HVAC systems. Its bendable construction simplifies routing through attics, crawl spaces, and other tight areas where rigid duct would be difficult to install.