Speedi-Products 6-Inch by 25-Feet Insulated Flexible Duct R4 Metalized Jacket is used in HVAC Heating and Air Conditioning systems and venting applications. This insulated R4 rated class 1 air duct comes with a polyethylene ...

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Speedi-Products 6-Inch by 25-Feet Insulated Flexible Duct R4 Metalized Jacket is used in HVAC Heating and Air Conditioning systems and venting applications. This insulated R4 rated class 1 air duct comes with a polyethylene sleeve and black poly exterior jacket. The duct is ETL listed, meeting the UL181 standard.

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