When you receive filters with the box all ripped up and taped back together your really uneasy to use the filter.
Shipping Box was in very bad shape.
Looked like it had been handleD several times
Didn’t want to use the filter because I couldn’t tell if it had debris embedded in it.
Didn’t return because wasn’t worth the effort for what I paid for the filter.
Been using PH5 filters for more than twenty five years, no problems, and those engines are still running well. I change them more frequently than prescribed.