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17x26x4 (16.63x26x4) Lennox OEM MERV 16 PCO-12C High Capacity Replacement Filter

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Lennox Part #X6666 Genuine OEM Lennox MERV 16 microglass filter

• Fits model #PCO-12C.
• Nominal size 17" x 26" x 4" (Actual size 16 5/8" x 26" x 4")
• Provides near-perfect filtration performance.

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