ADC Seal of Certification Children and School Certified|cUL S110 Class 1|cULus Listed|EcoTouch|GREENGUARD Gold Certified for Indoor Air Quality|HARDI Certified|NFPA 90A-90B|UL 181

• Compliance to NFPA standards allows you to install lengths longer than the 14 ft limitation applying to connector It is a highly efficient part of the total duct system because the smooth liner, the ample insulation and tough outer vapor barrier provide good airflow, thermal insulation and a double air seal Corrosion-resistant steel wire helix Fully lined for efficient air delivery Quality KM installations produce referrals that increase volume and profits GREENGUARD Gold certified is the industry's most recognized indoor air quality (IAQ) ratings Made with owens Corning EcoTouch® Formaldehyde-Free™ insulation Made with 99% natural materials and highest recycled content, also it is the only fiberglass insulation listed in the USDA BioPreferred catalog Strong polyester film laminated and encapsulating a heavy, corrosion-resistant steel wire helix, forms the inner core and supports a thick blanket of fiberglass insulation The outer vapor barrier is a bi-directional reinforced metalized vapor barrier that will not unravel Box packaging

Flex-Vent® KM is a thermally insulated, fully lined, UL 181 and CUL S110 class 1 flexible air duct designed for low to medium pressure cooling and heating HVAC systems. It can be used in either supply or return sections and provides economical means for handling misalignment between systems components and ducting around obstacles where fabricated and fitted ducts are difficult and costly to use. It is equally suitable for new jobs or retrofit work and is especially useful when making system extensions or for changing conditioned zones, now or in the future.