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  1. #1
    Join Date
    Sep 2011
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    upgrade furnace filter?


    I've seen some posts regarding thicker furnace filters (above 1"), and can't really seem to find any drawbacks to upgrading from a 1" up to 4"+... are there any negatives?

    I've attached a pic of my current filter area, and it's super tight.. there's a little over 4" of space in between the furnace and the vertical part of the return.. do I even have any options in that tight of a space to go for a thicker filter?

    I like the Carrier EZ Flex cabinet, but it's a bit over 7" wide unfortunately and and i'm assuming other manufacturers will be similar.


  2. #2
    Join Date
    Jan 2008
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    Looks like a simple 4" cabinet will fit. A media air cleaner will work well in most cases.
    Not really an easy diy job.
    That stuff is SHARP!
    "Hey Lama, hey, how about a little something, you know, for the effort." And he says, "there won't be any money, but when you die, on your deathbed, you will receive total consciousness." So I got that goin' for me, which is nice. - Carl Spackler

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