4" Inch Aluminum Hose Flexible Air Duct Pipe for HVAC Flex Ductwork - 25' Feet Long Fixed Blades guaranteeing efficient ventilation throughout your

guaranteeing efficient ventilation throughout your space

Do not measure the overall size of the register itself

Insulation – A thick blanket of fiberglass insulation provides you with an R-Value of 8

border-radius: 8px

Some of the best features aren't readily apparent

4" Inch Aluminum Hose Flexible Air Duct Pipe for HVAC Flex Ductwork - 25' Feet Long Fixed Blades guaranteeing efficient ventilation throughout your+ 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