AIRx 16x20x5HW-LX-HEALTH | Our#: 181031

16x20x5 AIRx HEALTH Replacement for Lennox X0582 Air Filter - MERV 13

AIRx 16x20x5HW-LX-HEALTH | Our#: 181031

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Replacement filter for Lennox X0582 - 16 X 20 X 5 - MERV 13

  • Change Every 6 Months
  • 16x20x5" Nominal
  • 15¾x19½x4¼" Actual

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Frequently Purchased Together

Product Details

Replacement filter for Lennox X0582 - 16 X 20 X 5 -  MERV 13  (2-Pack).  
(actual size 15 7/8" X 19 7/8" X 4 3/8")

These well-constructed filters are made to perform like the original replacement filter at a value price!

Designed not only to reduce dust, but has the ability to capture most common allergens. This is achieved by combining 100% synthetic electrostatically charged media, optimum pleat spacing and high quality construction. These deep-pleated filters have exceptionally high initial and sustained efficiency, high dust holding capacity, and very low pressure drop. The media is resistant to a wide range of chemicals, does not absorb moisture and will not support microbial growth.

MERV 13 Media Captures 90% of particle from 1-2 microns and promotes excellent indoor air quality (IAQ).


  • Nominal Dimensions: 16" X 20" X 5"
  • Actual Dimensions 15-7/8" X 19-3/4" X 4-3/8"
  • MERV 13
  • For models BMAC (Box Media Air Cleaner) - 16x20
  • Same as Honeywell FC100A1003, FC34A1035, 209894
  • This filter is not manufactured by Lennox

Do you want to know about the technical specs?

Nominal Dimensions
16 x 20 x 5"
Actual Dimensions
15 ¾ x 19 ½ x 4 ¼"
Filter Media
Electrostatically charged 100% synthetic gradient media that does not support microbiological growth
Filter Support Grid
30 gauge galvanized expanded metal grid
Moisture resistant double-wall beverage board
Max Temperature
180F (82C) continuous service, peak 225F (107C)
Max Humidity
Resistant to 100% R.H.

Replaces These Filters:

National Filter Sales:

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

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

Estimated time: 10 minutes or less


  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

    Visit 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!