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-   -   Furnace filters (https://www.askmehelpdesk.com/showthread.php?t=441412)

  • Jan 31, 2010, 11:54 AM
    shablue55
    Furnace filters
    Just recently heard of Garrison furnace filters. Do they compare to 3M filters? I see that the only MERV rating is 8. Has anybody used them?
  • Jan 31, 2010, 03:57 PM
    hvac1000
    It they restrict the air flow too much they will damage your equipment or cause major problems.

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