The LD-92-W 3.5" X 96" Straight White Ducting Conceals and Protects Exposed Refrigerant Linesets, Electrical Cables and Water or Drain Pipes. Fortress Provides Easy Installation for New and Retrofit Applications and Disassembles Easy for Inspections or Additions using Snap Together Ducting. This item is 90" Length of Ducting, White, 3.5" Size, 0 to 180 Degree Temperature Range, and Paintable. Now made using thicker plastic and offers improved heat resistance as well as better engagement between the top and bottom. This product provides a sturdier horizontal install with gussets and is also backwards compatible with its current design.