Flexible Aluminum pipe is designed for easy installation. It's flexible and can be maneuvered into tight areas as needed. Product holds it's shape and can be cut to size.
Aluminum - Flexible Ductwork - Ducting & Venting - The Home Depot
Everbilt 3 in. x 25 ft. Flexible Aluminum Foil Duct AF325ULPHD
HVAC Premium 3 inch Aluminum Hose Flexible Air Duct Pipe for Rigid HVAC Flex Ductwork - 10' Feet
Everbilt 3 in. x 25 ft. Flexible Aluminum Foil Duct EVER005 - The
Master Flow 1050 CFM Black Galvanized EZ Cool Plug-In Power Roof
3 Inch Aluminum Hose Flexible Air Duct Pipe for Rigid HVAC Flex
Master Flow 3 in. Round Tee T3X3X3 - The Home Depot
Fabriflex Type 3T - Fabric Ducting - Flexible
The Master Flow 4 in. x 3 in. x 3 in. Wyes are made of 30-gauge, galvanized steel. They are used primarily to transition from 1 pipe to 2 pipes in heating and air conditioning applications. They are easily installed with sheet metal screws (not included). The joints have a maximum temperature rating of 390 degrees Fahrenheit.
Master Flow 4 in. x 3 in. x 3 in. Wye Y4X3X3