12" Insulated Aluminum Flexible HVAC Duct R-6.0 – 25' Length Sheet Metal/Adjustable Elbow this heavy-duty work belt is

this heavy-duty work belt is constructed with durable 1680D Polyester and boasts reinforced pouch bottoms

+ Product Details Size – 6" x 20" or 20" x 6" is the size for the duct opening measurement only

Ideal for Walls & Ceilings: Designed for seamless installation in standard 12" X 10" duct openings

We always strive to choose high-quality materials and provide the most intimate service

ensuring optimal airflow while maintaining a sleek

12" Insulated Aluminum Flexible HVAC Duct R-6.0 – 25' Length Sheet Metal/Adjustable Elbow this heavy-duty work belt is+ Product Details High Quality Aluminum housing on the outside and on the inside for the best insulation value Insulation A thick blanket of fiberglass insulation provides you with an R Value of 6. 0 Energy Efficient Air tight inner core decreases the pressure loss and provides a more hygienic environment high energy efficient No fiberglass erosion into air stream Design Designed to withstand bends and sharp turns without kinking. Tough reinforced