Product review (1 stars): the Puresource units are terribly over priced
Didn't read the description or others' reviews carefully enough. This is NOT the original Puresource brand, nor is it "equivalent". These off-brand filters don't have the same heft, they don't seat flush as the original units do, and even after cycling several gallons through it we're still getting tiny black particles in the filtered water. One might assume these are simply inert bits of carbon from the filter, but I'm not real keen on ingesting tiny bits of black stuff manufactured in China. I'm sure as hell not going to have my kids ingest tiny bits of black stuff from China.

Anyway, the Puresource units are terribly over priced, but who wants to play roulette with their drinking water? Not this cheapskate.