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Lennox Furnace Filters

Using Lennox filters is one of the easiest ways you can make sure you’re doing your best to improve your home’s air quality and keep your family healthy. Your furnace can circulate a lot of dust, pollen, pet dander and other particles, but with Lennox filters, you keep these unhealthy items out of the indoor air, trapping them in the filter, which you then clean or replace.

Healthy Climate Lennox Filters for your furnace come in a wide variety of sizes and high efficiencies. Check MERV ratings to understand what particulates each filter is capable of reducing in your home. While you may not be able to control what your family encounters in the air outside, the dust-holding ability of Lennox filters helps control indoor air pollution caused by pollen, mold and allergens, transforming your home into a comfortable refuge for those suffering from respiratory ailments. To continue to get the air-improving benefits of Lennox filters, make sure to clean or change your filter regularly as indicated. When it’s time for a new one, choose DiscountFurnaceFilter.com for a huge selection and the lowest prices on Lennox filters. You can rest easy with our 365 Day Guarantee. Find your Lennox filters now.

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  • Lennox X6673 Furnace Filter

    Lennox X6673 - Healthy Climate HCF20-10 MERV 11 Replacement Filter 20" x 25" x 5"

    $35.98
    9 Review(s)
  • Lennox X6670 Furnace Filter

    Lennox X6670 - Healthy Climate HCF16-11 MERV 11 Replacement Filter 16" x 25" x 5"

    $31.92
    12 Review(s)
  • Lennox X6675 Furnace Filter

    Lennox X6675 - Healthy Climate Carbon Clean 16 HCF20-16 MERV 16 Filter Replacement - 20" x 25" x 5"

    $102.98
    18 Review(s)
  • Lennox X6672 Furnace Filter

    Lennox X6672 - Carbon Clean Healthy Climate HCF16-16 MERV 16 Replacement Filter 16" x 25" x 5"

    $102.95
    12 Review(s)
  • Lennox X8795 Filter Lennox X8795 - Healthy Climate PureAir Annual Maintenance Kit for PCO20-28
    $157.78 Includes FREE Shipping in Continental U.S.
    5 Review(s)
  • Lennox X6675-2 Furnace Filter Lennox X6675 (2-Pack) - Healthy Climate MERV 16 Replacement Filter 20" x 25" x 5"
    $195.69 Includes FREE Shipping in Continental U.S.
  • Lennox X0586 Filter Lennox X0586 - BMAC 20" x 25" x 5" Furnace Filter
    $39.36
    2 Review(s)
  • Lennox X0585 Filter Lennox X0585 - Healthy Climate Cabinet 20" x 20" x 5" Furnace Filter
    $32.69
    3 Review(s)
  • Lennox X7935 - Healthy Climate HCF14-16 MERV 16 Replacement Filter 20" x 20" x 5" - X7935 Lennox X7935 - Healthy Climate HCF14-16 MERV 16 Replacement Filter 20" x 20" x 5" - X7935
    $102.68
    5 Review(s)
  • Lennox X0581 Filter Lennox X0581 - BMAC 16" x 25" x 3" Furnace Filter
    $29.60
    1 Review(s)
  • Lennox X8788 Filter Lennox X8788 - PureAir PCO20-28 MERV 16 Filter- 20" x 26" x 5"
    $101.66
    5 Review(s)
  • Lennox X8796 Filter Lennox X8796 - Healthy Climate PureAir Annual Maintenance Kit for PCO16-28
    $163.74 Includes FREE Shipping in Continental U.S.
    6 Review(s)
  • Lennox X6667 Filter Lennox X6667 - PureAir PCO-20C MERV 10 Replacement Filter 21" x 26" x 4"
    $29.82
    1 Review(s)
  • Lennox X0445 Filter Lennox X0445 - PMAC-20C Replacement Filter 25" x 20" x 6"- X0445
    $30.85
    1 Review(s)
  • Lennox X1152 Filter Lennox X1152 - MF1-20 20" x 25" x 5" Furnace Filter
    $27.08
  • Lennox X6664 Filter Lennox X6664 - PureAir PCO-12C Replacement Filter 17" x 26" x 4"
    $32.69
    1 Review(s)
  • Lennox X0444 Filter Lennox X0444 - PMAC-12C Replacement Filter 28" x 17" x 6"
    $32.69
  • Lennox X8789 Filter Lennox X8789 - PureAir PCO16-28 MERV 16 Filter 16" x 26" x 5"
    $112.64
    3 Review(s)
  • Lennox X0584 Filter Lennox X0584 - BMAC 16" x 26" x 5" Furnace Filter
    $33.72
    1 Review(s)
  • Lennox X0583 Filter Lennox X0583 - BMAC 16" x 25" x 5" Furnace Filter
    $33.72
    1 Review(s)
  • Lennox X0587 Furnace Filter Lennox X0587 - BMAC 20" x 26" x 5" Furnace Filter
    $33.72
    1 Review(s)
  • Lennox X8310 - Healthy Climate HCXF20-10 MERV 10 Expandable Filter 20" x 25" x 5" Lennox X8310 - Healthy Climate HCXF20-10 MERV 10 Expandable Filter 20" x 25" x 5"
    $35.20
  • Lennox X8797 - Healthy Climate PureAir Annual Maintenance Kit for PCO14-23 Lennox X8797 - Healthy Climate PureAir Annual Maintenance Kit for PCO14-23
    $151.99 Includes FREE Shipping in Continental U.S.
    1 Review(s)
  • Lennox X8309 - Healthy Climate HCXF16-10 MERV 10 Expandable Filter 16" x 25" x 5" Lennox X8309 - Healthy Climate HCXF16-10 MERV 10 Expandable Filter 16" x 25" x 5"
    $36.25
  • 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"
    $102.98
  • Lennox X8790 - PureAir PCO14-23 MERV 16 Filter 20" x 21"x 5" Lennox X8790 - PureAir PCO14-23 MERV 16 Filter 20" x 21"x 5"
    $112.99
    2 Review(s)
  • X5424 Furnace Filter Lennox X5424 - PMAC-20C MERV 16 Replacement Filter 25" x 20" x 6"
    $102.49
    2 Review(s)
  • Lennox X8349 - PureAir PCO-12C MERV 10 Annual Maintenance Kit with Insert 17" x 26" x 4" Lennox X8349 - PureAir PCO-12C MERV 10 Annual Maintenance Kit with Insert 17" x 26" x 4"
    $199.31 Includes FREE Shipping in Continental U.S.
  • Lennox X8312 - Healthy Climate HCXF16-16 MERV 16 Expandable Filter 16" x 25" x 5" Lennox X8312 - Healthy Climate HCXF16-16 MERV 16 Expandable Filter 16" x 25" x 5"
    $101.91
  • Lennox X0582 - BMAC 16" x 20" x 5" Furnace Filter Lennox X0582 - BMAC 16" x 20" x 5" Furnace Filter
    $36.49
  • Lennox X6666 - PureAir PCO-12C MERV 16 Replacement Filter 17" x 26" x 4" Lennox X6666 - PureAir PCO-12C MERV 16 Replacement Filter 17" x 26" x 4"
    $102.98
    1 Review(s)
  • 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"
    $236.89 Includes FREE Shipping in Continental U.S.
    1 Review(s)

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