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furnace filter?

2K views 2 replies 3 participants last post by  how 
#1 ·
hi all,
I recently moved into a new house which has a bottom air return furnace. I was about to change the filter when i noticed there was not one in the filter space however there was a filter-like thing clamped above where the filter should go. my question is whether or not this is a filter or maybe a screen, it seems to thin to be a filter, anyways i don't know if i should remove it or not? Any help would be greatly appreciated.
 
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