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This Genuine OEM Lennoxreg; replacement filter (X6669) fits models PCO-20C. This MERV 16 filter has a nominal size of 21 x 26 x 4 and an actual size of 21 1/4 x 26 x 4.
Fits model number PCO-20C
Nominal size 21" x 26" x 4".
Actual size 21 1/4" x 26" x 4".
Genuine OEM Lennox.
MERV 16 microglass filter provides near-perfect filtration performance.
21x26x4 (21.25 x 26 x 4)
21x26x4 (21.25x26x4) OEM MERV 16 PCO-20C Lennox Replacement Filters
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