Do comparable filters have the same specks?

[Chris142]

Say a wix filter shows 20 micron on the wix site. Would a Fram,Baldwin,Purolator etc also be a 20 micron filter?

 

[oldhp]

Nope. Close maybe, but not exactly the same.

 

[Lubener]

It can never be assumed they all have the same "specks".

 

[dwendt44]

Cross reference refers to fitment. Thread and gasket diameter.
Wix has a couple of 'levels' of filters as does Fram and Purolator.
You can get equal or at least close to the same media rating if you are careful.

My 2¢

 

[ZeeOSix]

Listed efficiency specs by a manufacturer are only for that specific brand, and sometimes specific model of filter. So no, can't "cross reference" efficiency specs.

 

[wpod]

Why are we wondering?

 

[PimTac]

I prefer filters with a cellophane cover. That keeps the specks out.