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#30: 05-23-2011, 05:29 PM
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Originally Posted by DN1911 View Post
the black ones were from a company in japan called tokyo roki
I know, but in the US they were made by Purolator for a couple of years before going from(back to) Roki then to Honeywell. I don't remember the exact timeline of how it all happened but Purolators made them a for a while that I do know for sure. But either way, that one wasn't PureOne. Roki has a good reputation, but I've never seen any of those being tested.