Product HighlightsThermaflex® S-LD duct is a non-insulated air connector 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-LD duct provides economical means for handing misalignment between system components and ducts 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.
Thermaflex® S-LD 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.
California residents: see Proposition 65 Warning
Weight 2.70 Pounds Length 22.38 Inches Width 4.00 Inches Height 10.38 Inches Country of Origin USA Brand Thermaflex Tier S-LD Jacket Material Reinforced Film Laminate Vapor Transmission None Un-Insulated Application Air Distribution Certifications GreenGuard Color Silver, Pink Comments/Notes UL Listed - USA & CAN Composition Metallized Film Laminate Core Material Reinforced Metallized Film Fire Rating Meets UL 181 & NFPA 90A-90B Fire Codes Inside Diameter 4" Insulated No Maximum Air Flow 5000 FPM Maximum Pressure Positive = 10" Negative = 1" Maximum Temperature 250°F (121.1°C) Operating Temperature -20°F to 250°F (-28.8°C to 121.1°C) Pressure Rating WG - Positive 10 inches (3"-14" ID) - Negative 1 inch (3"-14" ID) Size 4" Warranty Offered Yes Compliance NFPA 90 A and 90 B UL Listed Yes UL Recognized Yes
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