UpCodes logo
Go To Full Code Chapter
Flexible air connectors, both metallic and nonmetallic, shall be tested in accordance with UL 181. Such connectors shall be listed and labeled as Class 0 or Class 1 flexible air connectors and shall be installed in accordance with Section 304.1.
603.6.2.1 Connector Length
Flexible air connectors shall be limited in length to 14 feet (4267 mm).
603.6.2.2 Connector Penetration Limitations
Flexible air connectors shall not pass through any wall, floor or ceiling.

Related Code Sections

603.6.2 Duct Systems, Flexible Air Connectors
Flexible air connectors, both metallic and nonmetallic, shall be tested in accordance with UL 181. Such connectors shall be listed and labeled ...
603.6.2 Duct Systems, Flexible Air Connectors
Flexible air connectors, both metallic and nonmetallic, shall be tested in accordance with UL 181. Such connectors shall be listed and labeled ...
603.6.2 Duct Systems, Flexible Air Connectors
Flexible air connectors, both metallic and nonmetallic, shall be tested in accordance with UL 181. Such connectors shall be listed and labeled ...