18" Insulated Aluminum Flexible HVAC Duct R-4.2 – 25' Length Copper Coil R Value Rating of Insulation

R Value Rating of Insulation - R3

1/4" - 6518 PSI

actual front end outer dimensions are approximately 15

7/8" Insulated Copper Coil Line - Seamless Pipe Tube for HVAC

+ Product Details Size – 3"w X 10"h or 10"w X 3"h is the size for the duct opening measurement only

18" Insulated Aluminum Flexible HVAC Duct R-4.2 – 25' Length Copper Coil R Value Rating of Insulation+ 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