I'm suprised that you of all people would not tout the frantz as the king of all filters, including coolant.
NAHhhh - I value the Frantz for the TYPE of filtering it does - not the specific brand - there are other TP or paper towel filters that undoubtedly will do the same job - Frantz isn't by any means the only player in the game - just one of the more popular ones, and the one I happen to use - the coolant filter setup discussed in this thread is much the same - others are available, or can be assembled from scattered sources - the primary interest is not a "brand name", but what they do, and how effectively.
There has been multiple threads over at Bitog about using a frantz or motorguard as a coolant filter. Below is a link to a recent one that has excellent pics. Although I do agree with you though, and thats why I bought the baldwin unit, as it was designed for coolant filtration.
WELL, I've certainly missed out on the use of a Frantz or Motorguard setup for coolant filtration - wonder what special cartridges, or treatment is involved to keep the element from falling apart in the hot water coolant stream? Believe me, the ordinary TP as used effectively for OIL filtration, WILL fall apart in hot water - and I wouldn't even remotely consider using it on any engine I thought much of, regardless of whether it was a Frantz setup, or something similar.
Guess I'll take a stroll over to the BITOG site, and get educated... :-laf