Photo 4 for Thermospas TS2003 55004-05 EL2M3 Circuit Board Control Pack Balboa

Hi, so it looks like this is a new circuit board control pack? Just making sure because I don't want a used one. I am looking to replace a TS203-PN5504-04 with this and it seems extremely similar. Do you konw if it should work as a replacement? Also, how do I buy this from you? Thank you, Tony