4" Expandable Duct

Expandable Duct Extension Kit

The COCOON Expandable Duct Extension Kit is designed to provide additional installation flexibility when connecting a COCOON heating and cooling solution to your home's existing ductwork.

Featuring a fire-resistant flexible connector, this extension helps accommodate minor alignment differences and spacing requirements between the furnace, evaporator coil, and main duct system. The expandable design allows for adjustment during installation while maintaining a secure connection.

The kit is designed to work alongside the COCOON Rigid Duct Extension Connection Kit to simplify installation and improve adaptability across a variety of applications.

Specifications

• Adjustable Height: 6"–9"
• Width: 18"
• Depth: 22"
• Fire-resistant flexible connector material
• 1/2" hem capability

Compatibility

• COCOON Thermal Mass Furnaces
• COCOON Heating and Cooling Solutions
• Compatible with the COCOON Rigid Duct Extension Connection Kit