The PUR-FM is a similar to the other PUR filters. The housing is the only thing that’s different and the filter inside it is the same as the other PUR faucet filters.
So, is there anything that makes this stand out from the others?
The filter is the same, so the only thing you should concern your self with is the design and the funcationality of the casing. If it doesn’t leak and looks good that’s pretty much all that matters.