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  • Every order is carefully packed and shipped by our team in Indiana. Your purchase helps support American jobs and hardworking families right here in the Midwest. Our AIRx Furnace / AC Filters and ClearChoice Fridge Filters are made in the USA.

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  • No minimums, no surprises — we ship every order for free! We’ll get your filters out the door fast so you can enjoy clean air and water without paying extra.

  • Shop with confidence! If you're not completely satisfied with your purchase, you have up to one year to return it for a refund or exchange. We stand behind every filter we sell.

    Learn More

  • Every order is carefully packed and shipped by our team in Indiana. Your purchase helps support American jobs and hardworking families right here in the Midwest. Our AIRx Furnace / AC Filters and ClearChoice Fridge Filters are made in the USA.

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We don't know what's in your water,
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  • Lennox Model X5426 MERV 16 Replacement Filter - 20 x 25 x 5

Lennox X5426 | Our#: 158166

Lennox Model X5426 MERV 16 Replacement Filter - 20 x 25 x 5

Lennox X5426 | Our#: 158166

  •  Free Shipping & Free Returns
  •  100% Compatibility Guarantee

The ultimate indoor air quality solution

  • Most efficient filter available for residential applications
  • Captures over 95% of airborne allergens down to 0.3 microns
  • Long service life and low pressure drop
  • Actual Dimensions: 20" x 24 ⅝" x 4 ⅜"
Lennox Model X5426 MERV 16 Replacement Filter - 20 x 25 x 5
Lennox Model X5426 MERV 16 Replacement Filter - 20 x 25 x 5
Lennox Model X5426 MERV 16 Replacement Filter - 20 x 25 x 5
Lennox Model X5426 MERV 16 Replacement Filter - 20 x 25 x 5
Lennox Model X5426 MERV 16 Replacement Filter - 20 x 25 x 5

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  •  Free Shipping & Free Returns
  •  100% Compatibility Guarantee
Frequently Purchased Together

Product Details

Lennox Model X5426 MERV 16 Replacement Filter - 20X25X5 - Fits BMAC-20C air cleaner cabinet

SINGLE FILTER

Dimensions: 20" x 25" x 5"
Actual Size: 20" x 24 5/8" x 4 3/8"
GENUINE OEM Lennox Part# X5426
Fits BMAC-20C air cleaner cabinet
Highest rated filter available for residential systems MERV 16
Upgrade for Lennox X0586
(Interchangeable with Honeywell FC100A1037 or FC200E1037 - slightly larger than Lennox X6675)

Lennox® and Healthy Climate® are registered trademarks of Lennox International Inc.. National Trade Supply, Inc, DiscountFilters.com and AIRx are not affiliated with Lennox International Inc.

Additional Information



How to change your furnace/air-conditioner/HVAC air filter

Estimated time: 10 minutes or less

Steps

  1. Determine the location of your filter

    Your forced air system will be similar, whether or not it is a heating (furnace) or cooling (AC) system – or both. The furnace filter housing/slot is located right next to the heating/cooling system’s air handler or blower. Your filter(s) may also be located in a return grille on the wall or ceiling of your home.

  2. Determine the type/size of filter that you use

    Typically, the dimensions or part number of the filter will be printed on the filter frame. Use this information to order a new filter.

  3. Purchase a new air filter from DiscountFilters.com

    Visit DiscountFilters.com and purchase a new filter. Use our filter finders to verify the correct match.

  4. Remove the old filter

    Turn off the power to the heating/cooling system and remove the old filter from its housing/slot and discard.

  5. Insert the new filter

    Pay attention to any airflow direction arrows printed on the frame of the new filter. Install the filter by sliding it into the filter housing/slot with the airflow arrow pointing towards the blower. If installing the filter in a wall or ceiling grille – the airflow arrow should point towards the wall or ceiling. Turn on the power to the forced air system.

    Enjoy cleaner air!