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  1. Lennox X6667 Filter
    Lennox X6667 - PureAir PCO-20C MERV 10 Replacement Filter 21" x 26" x 4"
    $39.61
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  2. Lennox X6669 - PureAir PCO-20C MERV 16 Replacement Filter 21" x 26" x 4"
    Lennox X6669 - PureAir PCO-20C MERV 16 Replacement Filter 21" x 26" x 4"
    $108.77
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  3. Lennox X8348 - Healthy Climate PCO-20C MERV 10 MAINT KIT W/INSRT 21" x 26" x 4"
    Lennox X8348 - Healthy Climate PCO-20C MERV 10 MAINT KIT W/INSRT 21" x 26" x 4"
    $254.81
    Rating:
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    1 Review
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  4. Lennox X8345 - PureAir PCO-20C MERV 16 Upgrade Kit with Insert 21" x 26" x 4"
    Lennox X8345 - PureAir PCO-20C MERV 16 Upgrade Kit with Insert 21" x 26" x 4"
    $327.38
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  5. Lennox Y4593 - 1st Generation to 2nd Generation Conversion Kit: Healthy Climate PCO-20C MERV 10 MAINT KIT W/ INSRT 21" x 26" x 4"
    Lennox Y4593 - 1st Generation to 2nd Generation Conversion Kit: Healthy Climate PCO-20C MERV 10 MAINT KIT W/ INSRT 21" x 26" x 4"
    $230.11
    Out of stock
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  6. Lennox X8344 - PureAir PCO-20C MERV 16 Upgrade Kit without Insert - 21" x 26" x 4"
    Lennox X8344 - PureAir PCO-20C MERV 16 Upgrade Kit without Insert - 21" x 26" x 4"
    $313.26
    Out of stock
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  7. Lennox Y4591 - 1st Generation to 2nd Generation Conversion Kit: Healthy Climate PCO-20C MERV 16 w/ Insert 21" x 26" x 4"
    Lennox Y4591 - 1st Generation to 2nd Generation Conversion Kit: Healthy Climate PCO-20C MERV 16 w/ Insert 21" x 26" x 4"
    $436.96
    Out of stock
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  8. Lennox Y4594 - 1st Generation to 2nd Generation Conversion Kit: Healthy Climate PCO-12C MERV 10 w/ Insert 17" x 26" x 4"
    Lennox Y4594 - 1st Generation to 2nd Generation Conversion Kit: Healthy Climate PCO-12C MERV 10 w/ Insert 17" x 26" x 4"
    $226.36
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MERV Rating
  1. MERV 10
  2. MERV 16
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