804DU4" Insulated Flexible Duct (25 ft.)

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  • 4" Insulated Flexible Duct (25 ft.)

  • What is the R value ? Description of material? Warranty? Suited for what environment?

    R value? Can be used with bathroom exhaust fan? Can be exhausted thru soffit? Thank you.
    Asked by: Trudy
    Thank you for your question on the model 804DU insulated duct work. The R value of the 804DU is 4.2. It is made from a thick blanket of fiberglass insulation with a steel wire helix and covered with a reinforced polyester jacket. It is designed for indoor use as a supply and return air duct in residential and commercial low-to-medium pressure heating and air conditioning systems. Please contact the Technical Service Department at 800-637-1453 for further assistance.
    Answered by: BroanCustomerService
    Date published: 2014-02-24
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