I purchased a hydro filter from my dealer Sat. The invoice has the right part #, but the filter looks to small. The # on the filter are 0398360z, and 21400e1. Is the correct hydro filter or did they mess up? Also it was not in a box and is white, I have had a few problems with after market filters and do not want to use them. Any help will help me, since I do not have a trust in this dealer.