7" Insulated Aluminum Flexible HVAC Duct R-4.2 – 25' Length Copper Coil-Insulated Line Set Designed for optimal air flow

Designed for optimal air flow and lasting durability

but you will appreciate the benefits over the period of time

High Quality – Solid rigid steel body for durability and reliability

accordion dd { margin: 0 0 20px 30px

7" Insulated Aluminum Flexible HVAC Duct R-4.2 – 25' Length Copper Coil-Insulated Line Set Designed for optimal air flow+ 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 4. 2 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