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Insulated Duct 6″ – 25′


Lead Time: 3-5 Business Days

SKU: 77152 Categories: , Tag:


Insulated Duct 6″ – 25′

This Insulated duct 6 inch 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


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 durable black polyethylene
Quality KP installations produce referrals that increase volume and profits
Available through broad national distribution
Available in 4.2, 6.0, and 8.0 thermal application values
Available in both box and bag packaging


Diameter 4-20 inches ID
Pressure Rating (WG)
Positive 10 inches (4″-16″ ID)
6 inches (18-20 ID)
Negative 1 /2 inch (4″-20″ ID)
Velocity 5000 FPM
Temp. Range -20°F – 250°F cont.
R-Value R-4.2, R-6.0, R-8.0
GREENGUARD Certifications GREENGUARD Indoor Air Quality Certified
GREENGUARD Children and Schools Certified


10 Year warranty

Additional information

Weight 3.74 kg
Dimensions 66.04 × 25.40 × 25.40 cm


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