[WHAT TO GET]: This duct splitter is crafted from quality galvanized steel, featuring a sturdy structure, with excellent corrosion, wear and heat resistance. It is used to distribute or combine airflow between the main duct and multiple branch ducts in a ventilation system. Its smooth inner wall ensures excellent ventilation performance, and its compact design saves space.[WHEN/WHERE TO USE]: This versatile adapter can be used perfectly with pellet stoves, fireplaces, general ventilation systems, dryer exhaust pipes and various ventilation equipment. It also suits home heat recovery ventilator systems, central HVAC systems, kitchen exhaust setups and industrial dust collection needs. It prevents air leakage through sturdy and reliable connection, helping the duct system maintain stable and efficient operation.