I don't particularly like the Aprilaire 213 style foldable filter that came with my HVAC system, so I asked a technician if he could replace the filter enclosure/cabinetry with something that would fit a standard Honeywell box filter. He said I could slide a standard Honeywell 20 x 25 x 4 filter in its place. The box filter seems to slide in OK, but there is a gap at the top, as shown in the photograph. Is this really an OK fix? I feel like a lot of unfiltered air could go past.
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Old Aprilaire Filter that I don't like:
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Old Aprilaire Filter that I don't like:
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