PR-25 (25’ length) flexible duct is constructed UL Listed & Labeled with a spring steel wire helix, encapsulated in a Guaranteed out of package lengths 2-ply, air-tight inner core. Fiberglass insulation 10 Year limited warranty choices of R4.2, R6 & R8 encompass the core and GREENGUARD Gold Certification a black polyethylene vapor barrier surrounds the Formaldehyde free (see www.jplflex.com for more info) entire duct. 3/8” oversize inner core Certified R-Values 

Specifications: 

SKU Description Prod Info Price/Units Quantity
IFP4R8 4" POLY FLEX 25' RPR25R8B(GRN) Product_Details FT
IFP5R8 5" POLY FLEX 25' RPR25R8B(GRN) Product_Details FT
IFP6R8 6" POLY FLEX 25' RPR25R8B(GRN) FT
IFP6R850 6" POLY FLEX 45' RPR45R8B(GRN) FT
IFP7R8 7" POLY FLEX 25' RPR25R8B(GRN) FT
IFP7R850 7" POLY FLEX 45' RPR45R8B(GRN) FT
IFP8R650 8" POLY FLEX 50' RPR50R6B(BWN) Product_Details FT
IFP8R8 8" POLY FLEX 25' RPR25R8B(GRN) FT
IFP8R850 8" POLY FLEX 45' RPR45R8B(GRN) FT
IFP9R8 9" POLY FLEX 25' RPR25R8B(GRN) FT
IFP10R8 10" POLY FLEX 25' RPR25R8B(GRN Product_Details FT
IFP12R8 12" POLY FLEX 25' RPR25R8B(GRN Product_Details FT
IFP14R8 14" POLY FLEX 25' RPR25R8B(GRN Product_Details FT
IFP16R8 16" POLY FLEX 25' RPR25R8B(GRN Product_Details FT
IFP18R8 18" POLY FLEX 25' RPR25R8B(GRN Product_Details FT