Material: Made of robust and durable galvanized steel with excellent corrosion resistance.  

Function: Specifically designed for spiral duct systems to provide an airtight connection between the main duct and branch ducts.  

Sealing Performance: The integrated rubber seal prevents air leakage, ensuring the tightest and most secure connection.  

Application: Suitable for both commercial and residential HVAC (Heating, Ventilation, and Air Conditioning) systems.