Specifications Model: GC160 Diameter: 6.22 inch / 158 mm Tube Thickness (in extended state): 0.98 inches / 25 mm Length: 300 inches / 7620 mm Thermal Resistance Value: R-4.2 Net Weight (Including all Accessories): 8.15lbs / 3.7 kg Product Dimensions (in extended state): 8.18 x 8.18 x 300 inch / 208 x 208 x 7620 mm Package Content Flexible Duct x 1 Stainless Steel Clamps x 2