Originally Posted by hatake
If you put the blue one on your lovely RS, I may trust it. Let us know!
That just means she put a lower quality filter on her car, not that it's going to be good to use.
Truth is, they appear to be cheaper, and less well made. However, there probably won't be too many problems with these. There are millions of people running honeywell/AlliedSignal filters our there and only a handful of horror stories.