For total SP, yes, but not for velocity across the face of the filter. We have to also account for filter grills having 40% of the open surface area blocked by louvers.
Originally Posted by 54regcab
Add in the ability for unfiltered air to infiltrate the return ducting between the filter grill and the blower assembly, and there are more reasons to put the filter close to the blower than there are reasons to have the convenience of a filter grill.
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