To find out more about your specific machine, if it falls between containers 103 to 111, please email support@thunderlaserusa.com with your serial number.
If your machine isn't on containers 103-111, you have the old fan. If your machine is on container 111 or up, then it has a new fan.
If you do not have your crate or serial number please contact sales@thunderlaserusa.com instead of support.
These machines now have a 150mm (6") exhaust port (unchanged for Nova 24 and 35) and ship with the HF-150PE 6 Inch 380 CFM ECO-Watt Mixed-Flow Inline Fan.
These machines now have a 200mm (8") exhaust port and ship with the HF-200PE 8 Inch 735 CFM ECO-Watt Mixed-Flow Inline Fan
These machines now have a 75mm (3") exhaust port and ship with the HF-75S Axial Inline Fan: