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AC / Furnace Filters
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REME HALO AIR PURIFIER
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Whirlpool HEPA Filters and Prefilters
Atomic 24000 Honeywell Compatible Replacement Filter for HEPA Air Purifier
Atomic 1183054K HEPA Replacement Filter Whirlpool Whispure Air Purifier Models AP450 and AP510 Compatible After Market
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I received the Lennox X1152 and I needed X6673 because both of these filters say 20x25x5 I thought they were the same but found out otherwise because it didn’t fit my furnace!