For the best Gemaire experience, please update your web browser.

Thermaflex 052612000002 - S-TL Non-Insulated Flexible Air Duct, 12" X 25'

Item: STL12
MFR: 052612000002

This product is no longer available for purchase.

Comparable Products


Thermaflex® S-TL non-insulated flexible air duct is designed for use in all pressure cooling and heating systems. It is used in either supply or return sections: for branch ducts and duct connections to or between mixing units induction units, control or terminal units and diffusion devices, including light troffers.

Thermaflex S-TL air duct provides economical means for handling misalignment between system components and ducting around obstacles where fabricated and fitted ducts are difficult and costly to install. This duct is equally suitable for new jobs or refit work, and is especially useful when making system extensions or changing conditioned zones now or in the future.

Compliance with NFPA Standards lets you install lengths longer than the limitation applying to connectors.

Thermaflex S-TL air duct offers further economy of installed cost, for example, as a return duct within conditioned spaces or in any zone where the function of insulated duct is not required.


NameThermaflex 052612000002 - S-TL Non-Insulated Flexible Air Duct, 12" X 25'
Gemaire Item NumberSTL12
Manufacturer Product Number052612000002
SKU - PIM Number1371468919647
ERP Number233604
Unit of MeasureEA
Weight11.7 Pounds (Lb)
Length22.4 Inches (In)
Width12.0 Inches (In)
Height13.4 Inches (In)
Country of OriginUSA
Jacket MaterialVapor Barrior
Vapor TransmissionNone Un-Insulated
ApplicationAir Distribution
Comments/NotesUL Listed - USA & CAN
CompositionFiberglass Cloth Fabric
Core MaterialFiberglass Cloth
Fire RatingMeets UL 181 & NFPA 90A-90B Fire Codes
Inside Diameter12"
Maximum Air Flow6000 FPM
Maximum PressurePositive = 16 inches (2-10 in. ID) 10 inches (12-20 in. ID) Negative = 1 inch
Maximum Temperature250°F (121.1°C)
Operating Temperature-20°F to 250°F (-28.8°C to 121.1°C)
Pressure RatingWG - Positive 16 inches (2"-10" ID), 10 inches (12"-20" ID) - Negative 1 inch (2"-20" ID)
Warranty OfferedYes
ComplianceNFPA 90 A and 90 B
UL ListedYes
UL RecognizedYes
GEM - Case Quantity


Parts List