12" Insulated Aluminum Flexible HVAC Duct R-6.0 – 25' Length 2-Way GPH for highest: 3

GPH for highest: 3

This product can be used for venting most types of heating units

+ Product Details Perfect Fit & Easy Sizing - Designed for a 12" x 20" or 20" x 12" duct opening (measured at the opening)

Upgrade your HVAC system with a high-quality aluminum return grille designed for a clean

High Standard Quality - Every part is hand inspected for quality before it is packaged

12" Insulated Aluminum Flexible HVAC Duct R-6.0 – 25' Length 2-Way GPH for highest: 3+ 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