Nice catch! Hehehehe...I was wondering if someone would see that.
Place I get my OC uses Puro's. I'm not a 'die hard' Fram guy. I don't absolutely go out of my way to use them. I just don't like the 'anti-Fram' hype that is on here, and not based on fact.
Fram filters are used on millions of cars, are (I think) the number 1 selling filter in NA, and the roads are not littered with dead engines from Fram filters.
I've personally used them more often than not in my 15 years of driving, and have never had a problem. Yes, the end-caps are fibreboard, but there is absiolutely no factual evidence that this is sub-standard filter material - people just don't like the 'look' or 'idea' of fibreboard end-caps, so they just say the filter is bad.
Perhasps there are some examples of Frams failing, but it's just like the PZ sludge story - there are more of them out there, so the failures are more visible. Every other filter, at some point or another, has had a failed filter, but folks don't talk about those, b/c it's 'cool' on here to hate Fram.