The MKFlex Uninsulated Flexible Duct is extremely strong, with metallized polyester film/aluminium foil permanently bonded to a corrosion resistant spring steel wire helix. It is highly suitable for use for all pressure heating and cooling systems. It is a superior alternative for applications where insulated duct is either not required or cannot be used, e.g., clean room applications.
This Class 1 Air Duct is constructed of two layers of metallized polyester film encapsulated with steel helix spring wire.