8" Insulated Aluminum Flexible HVAC Duct R-6.0 – 25' Length 18in diameter This access door boasts a

This access door boasts a spring-loaded locking mechanism

+ Product Details Size – 16"w X 25"h pleated MERV 2 filter for HVAC return filter grille - 12 Pack

+ Product Details Size - 10"w X 10"h Is The Size For The Duct Opening Only

+ Product Details Size - 36"w X 10"h X 2"d (for duct opening measurement only)

+ Product Details Size – The size of 4" straight saddle stick on take-off is 10"/12"/14" and it is compatible with duct 4"

8" Insulated Aluminum Flexible HVAC Duct R-6.0 – 25' Length 18in diameter This access door boasts a+ 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