Lennox X8790 | Our#: 171849

Lennox Model X8790 MERV 16 Filter for PCO14-23 - 20 x 21 x 5

Lennox X8790 | Our#: 171849

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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 20 ⅝" x 4 ⅜"
Lennox Model X8790 MERV 16 Filter for PCO14-23 - 20 x 21 x 5
Lennox Model X8790 MERV 16 Filter for PCO14-23 - 20 x 21 x 5
Lennox Model X8790 MERV 16 Filter for PCO14-23 - 20 x 21 x 5
Lennox Model X8790 MERV 16 Filter for PCO14-23 - 20 x 21 x 5
Lennox Model X8790 MERV 16 Filter for PCO14-23 - 20 x 21 x 5

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$199.95

$249.94 Save 20%
(1 Filter for $199.95)
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  •  Free Shipping & Free Returns
  •  100% Compatibility Guarantee
Frequently Purchased Together
Frequently Purchased Together
MERV 16 Replacement for Lennox X8790 Filter - 20 x 21 x 5
MERV 16 Replacement for Lennox X8790 Filter - 20 x 21 x 5
MFG#: 20x21x5-LX-MAX
$124.94

Product Details

Factory original filter from Lennox. The Healthy Climate PureAir MERV 16 filter offers the highest level of filration efficiency for residential systems. Cartridge can last up to one year, though product replacement life cycle depends on the individual conditions and needs of your home. 

  • Highest rated filter available for residential systems: MERV 16 
  • Removes OVER 95% of particles ranging in size down to 0.3 micron
  • Replaces catalog number X8790
  • Fits PCO14-23 air cleaner cabinet
  • Nominal Dimensions: 20" x 21" x 5"
  • Actual Dimensions 20" x 20-5/8" x 4 3/8"
  • Factory original, OEM product

Replaces These Filters:

Lennox:
X8790
National Filter Sales:
20x21x5

Fits In These Systems:

Lennox:
PCO14-23

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!