[Cut Open] Performax PO-37 6,229 miles

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I cut open a Performax PO-19 a few weeks back and it also looked great. I'd use these filters without a worry...
 
What's the bypass valve look like? ... sometimes that give a hint on who might have made the filter.
 
Purolator made, and same results as the last couple Pmax posted. Similar/identical to Quaker State and Pep Boys ProLine. Looks good. Thanks for the pics.
 
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