Bob F wrote:
"Rick Brandt" wrote in message
....
Incorrect when the thickness is achieved by larger pleats. The actual filter
*material* is the same. Bigger pleats in a thicker filter "container" means
more area and less resistance.


That's it.

There's double the additional structural material too...I'm still not
convinced the dP goes down at all, it just may not go up much...

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