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-   -   Return air grilles w/filters (http://www.diychatroom.com/f17/return-air-grilles-w-filters-45408/)

farmerde 05-27-2009 07:40 PM

Return air grilles w/filters
 
I have a HVAC system with two return air grilles, the filter is located under the unit which is in a wall cabinet. I would like to replace the grilles with the types of grills that accept filters, can I do this without worrying about air flow restriction? If I do this, can I remove the main filter under the unit?

Thanks!

beenthere 05-27-2009 09:50 PM

What size system is it.
What size are the holes in the walls.

When the air filter is in the grille. The grille usually needs to be bigger.


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