I can go to China now and have my own filters made and have them stamped made in any country I want them
to. Not saying this is the case here. But I know this very well. One slick company I know had a whole item with many parts
all made in China but the USA company added one small very visible part on the item and it was proudly stamped Made in the USA which that part was but that was a complete fraud. Assembled in the USA is another slick trick. This is our world today.
Don't know why I am surprised, but I am.