Product review (3 stars): Leaked due to improper o-ring.
Seems to work OK now that I switched the o-ring from the original filter to this one.  After installing it we noticed a leak, and multiple re-installations failed to solve the problem.  Comparing the original and this filter revealed this o-ring was too large and loose, thus failing to provide a good seal.  Switching them solved the problem, but I shouldn't have to do so.