It was a long time ago but I do remember you busting on it in such hypocritical fashion.Purolator PSL filters were wire backed - read the description in the link below (snap shot posted). So there's no way they would ever have wavy pleats. Going for another Wyle explosion?
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coulda been a Bosch then. Blue, full synthetic media, not wire backed??? I’m positive you would remember. You probably have all the info on it in you M+H file but you won’t say so.
Beep beep.