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The GeneralAire FP12020X5 MERV 8 AC Filter Media fits all furnaces or air conditioners that require the following size filter:
This GeneralAire FP12020x5 filter media is rated MERV 8.
The GeneralAire FP12020X5 MERV 8 AC Filter Media specifications:
The GeneralAire FP12020X5 is also known as GeneralAire part no. 4528.