VEVOR Dryer Vent Hose, 4'' Insulated Flexible Duct 25FT Long with 2 Duct Clamps, Heavy-Duty Three Layer Protection for HVAC Heating Cooling Ventilation and Exhaust, R-6.0 Flame Resistance Value

VEVOR Dryer Vent Hose, 4'' Insulated Flexible Duct 25FT Long with 2 Duct Clamps, Heavy-Duty Three Layer Protection for HVAC Heating Cooling Ventilation and Exhaust, R-6.0 Flame Resistance ValueFlexible AdjustmentsEfficient InsulationTriple-Layer ProtectionEasy InstallationWide Range of ApplicationsCoil Structure DesignLength: 300 inches / 7620 mm,Net Weight (Including all Accessories): 8.04lbs / 3.65 kg,Tube Thickness (in extended state): 0.98 inches / 25 mm,Model: OW108,Product Dimensions (in extended state): 6.49 x 6.49 x 300 inch / 165 x 165 x 7620 mm,Thermal Resistance Value: R-6.0,Diameter: 4.25 inch / 108 mm