G-Km Thermaflex Flexible Hvac Duct - 6 Inch Diameter R4.2 0545-0600-0001-10

Highly efficient thermaflex g-km spiral ducts are premium air vessels for low medium pressure heating and cooling systems. These acoustically rated hvac ducts eliminate noise and feature a core that easily expands over fitting. The core is bonded to a steel wire coil to support the thick fiberglass insulation blanket. These air ducts feature a heavy duty polyethylene vapor barrier that provides even airflow and a double air seal. They are self-extinguishing and won't support flames. Temperature range is from -20f to 250f and -20f to 250f intermittent. Ducts have a 3-20" diameter. Greenguard certified. 10 year limited warranty.

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