Part #4009-2 for 2100 miniTAN & 4100 miniTAN (Pre-March 2017):
These Turbine filters fit the miniTAN (Pre-March 2017) Series. Coarse filter goes on the right hand side (as seen when looking at the front of the case) fine filter on the left. Its a good idea to have spare filters on hand so you can rotate them after cleaning.
Sold 2/ pack