Flex KM is a thermally insulated, fully lined, UL 181 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.
Compliance to NFPA Standards allows you to install lengths longer than the 14' limitation applying to connectors. 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
Features and Benefits:
Underwriters Laboratories listed for the US and Canada.
Complies with NFPA Standards 90A and 90B.
Corrosion resistant steel wire helix.
Fully lined for efficient air delivery.
The outer vapor barrier is a jacket of fiberglass scrim reinforced metallized film laminate.
Quality KM installations produce referrals that increase volume and profits.
Available in 4.2, 6.0, and 8.0 thermal application values.
Available in both box and bag packaging.
GreenGuard® Gold Certified which is the industry’s most recognized Indoor Air Quality (IAQ) rating.
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.
Warning: this product contains a chemical known to the State of California to cause cancer. P65Warnings.ca.gov
15.9 Pounds (lbs)
30.625 Inches (In)
14.375 Inches (In)
Country of Origin
14.375 Inches (In)
GreenGuard Indoor Air Quality Certified and GreenGuard Children and Schools Certified
UL Listed - USA & CAN
NFPA 90 A and 90 B
Laminated Polyester Film
Complies with NFPA Standards 90A and 90B. Corrosion resistant steel wire helix. Fully lined for efficient air delivery. The outer vapor barrier is a jacket of fiberglass scrim reinforced metallized film laminate.
*Truck Stock Promo: Offer available on a single order only. Instant discount only applies for Totaline branded products. Any Equipment, non-Totaline branded products or warranty parts
do not apply for instant discount. Any non-Totaline branded product(s) cannot be included to reach the total amount for instant discount. The instant discount is on
regular priced products only. Order cannot be combined with any other offer(s), discount(s), special(s) or promotion(s). This offer is only valid on purchases made
from July 1 through August 31, 2019. Qualifying order must be shipped and invoiced by 8/30/19. Back orders will not be accepted. Carrier Enterprise reserves the
right to add, remove or modify items on this promotion without prior notice. Other restrictions may apply. Void where prohibited.