Original vs Replica: Central Ventilation Filter

Which filters do you buy for central residential ventilation (controlled residential ventilation).. original from the manufacturer or replicas?
For me, it's currently about a Wolf CWL-300 Excellent.. but the model shouldn't matter, as I think this is a fundamental question.
What do you think?

I have a CWL-2-325. There are two plastic frames where a fabric mat is loosely inserted in each. I ordered G3 filter mats in the appropriate thickness and cut them to size. The material is completely identical in texture. The original Wolf ones cost 3-4 times as much.