The filter construction is really no different from what I source at my hardware store, however, the filter level I purchased has a bit better construction-strength.
Didn't seem to fit like the one I took out BUT I had to literally RIP the old one out. . . Even though same size on filter. . . So the filter buy filters actually fit better!
No happy with the price actually I been thinking to modify my unit to make it conventional in order to pull down the price on those filters cuz it's very expensive