5" Inch Aluminum Hose Flexible Air Duct Pipe for HVAC Flex Ductwork - 10' Feet Long Round Damper Ring the second number represents the

the second number represents the height

Actual Filter Size – 7 3/4"w x 5 3/4" x 1"

+ Product Details Size – 10" x 28" or 28" x 10" is the size for the duct opening measurement only

actual front end outer dimensions are approximately 32 5/8" width X 26 5/8" height -

Ideal for Walls & Ceilings: Designed for seamless installation in standard 24" X 10" duct openings

5" Inch Aluminum Hose Flexible Air Duct Pipe for HVAC Flex Ductwork - 10' Feet Long Round Damper Ring the second number represents the+ Product Details High Quality Aluminum housing on the outside and on the inside for the best insulation value 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 metallized polyester jacket tear and puncture resistant Carefully Shrink Wrapped With