12 Inch / 315mm Double Walled Air-Con & Heating Duct

What's the point of having a big and powerful air-con or heater if the air isnt the right temperature by the time it gets to the desired room?
With poor quality insulated ducting, you can lose up to 40% of the temperature before the reaches the room.
This double walled insulated duct from HyFlo will have your temperature control performing better than ever. With a single piece vinyl overlay and reflective aluminium interior, this is the best small cavity duct available. 

Item specifications:

• 12 inch / 315mm Diameter
• 5 Meter Length
• Double walled design
• Vinyl exterior
• Aluminium interior
• Flexible yet sturdy steel frame cavity

Please note: 
This is small cavity duct: no foam, rockwool, or fibreglass insulation layer.
This is reflective aluminium interior with R:0.7
This is professional grade duct, the internal diameter is designed to fit AROUND a 315mm fitting. Meaning the duct is slightly larger than the fitting it is going to be installed on. Use duct clamps for commercial grade seal.