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The easiest way is using a spectrometer, but not everyone has one at their disposal.
Are they ZWO NB filters?
Can you take a photo of them and share, quite of few of us have ZWO NB filters so a visual comparison is probably the best way to go.
Judging by the photos, looks like the Ha and Sii mixed up, Oiii looks ok. But that depends on your exposure time, offset and gain settings etc.
So open up the filter wheel and show us the guts!
Bo
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