18" Insulated Aluminum Flexible HVAC Duct R-6.0 – 25' Length w20h20 Powder-coat finish – Smooth

Powder-coat finish – Smooth

Design – Easy unrestricted air flow for your HVAC system

actual front end outer dimensions are approximately 20 5/8" width X 8 5/8" height

+ Product Details Size - 28"w X 34"h X 2"d (for duct opening measurement only)

+ Product Details Size - 30"w X 30"h is the size for the duct opening measurement only

18" Insulated Aluminum Flexible HVAC Duct R-6.0 – 25' Length w20h20 Powder-coat finish – Smooth+ 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