Find Popular Lennox Filters by Model Number With Size 2024

by Kevin King October 14, 2017

How to Find Popular Lennox Filters by Model Number With Size

X8309 (HCXF20-10) Expandable Replacement Filter - 16x25x5 (Actual Size of Assembled Frame - 15-3/4 X 24 3/4 X 4 7/16)

X8310 MERV 10 Expandable - Nominal Size 20 x 25 x 5 (Actual Size: 19 3/4 X 24 3/4 X 4 7/16)

X6670 Nominal Size: 16 x 25 x 5 ( Actual Size 15-3/4 X 24-3/4 X 4-3/8 )


X6673 Nominal Size: 20x25x5 MERV 11 Filter ( Actual Size 19-3/4" X 24-3/4" X 4-3/8" ) for HCF20-16

X6675 Nominal size: 20" x 25" x 5" ( Actual size: 19 7/8" x 24 7/8" x 4 3/8" )

X0586 Nominal size: 20" x 25" x 5" ( Actual size: 20" x 24.75" x 4.375")

X0587 Nominal size: 20" X 26" X 5" ( Actual Size 20-7/16" x 26" x 5-5/32" )

X6667 Nominal size: 21x26x4 ( Actual Size 20 3/4 X 25 3/4 X 3 3/4 )

X6664 Nominal size: 17" x 26" x 4" ( Actual size 16 5/8" x 26" x 4" )

X0444 Nominal size: 28" x 17" x 6"

X0445 Nominal Size: 25" x 20" x 6"

91X23 14x20x1 MERV 8

91X24 15x20x1 MERV 8

91X25 18x25x1 MERV 8
91X26 25x25x1 MERV 8

See entire list at the end of this Article

Complete List of 1 inch, 2 inch, and 4 inch Air Filter Sizes with Actual Size and MERV ratings available

Atomic carries a vast selection of MERV 8, MERV 11 and MERV 13 Air Filters by size. You can view the complete list of 1" , 2, and 4" Air Filters Sizes. These Atomic Brand filters are high quality air filters made in the USA.

Air filters are critical components of your heating and cooling system. Your air filter helps improve the quality of your home’s air and keep your system performing at optimal efficiency saving on power consumption. The most common filters are standard disposable cartridges, but advanced filtration systems and air cleaners are also available from Lennox. Atomic carries a vast selection on original Lennox products and compatible furnace filters for your HVAC system.

What are Lennox MERV 16 Filter Sizes by Model

See MERV 16 Filters by Lennox and Maintenance Kits. Click your model to see full details or add to cart below.

  • X6672 - Nominal size 16" x 25" x 5" ( Actual size 15 7/8" x 24 7/8" x 4 3/8" )
  • X6666 - Nominal size 17" x 26" x 4" ( Actual size 16 5/8" x 26" x 4" )
  • X6675 - Nominal size 20" x 25" x 5" ( Actual size 19 7/8" x 24 7/8" x 4 3/8" )
  • X6669 - Nominal size 21"x26"x4" ( Actual size 20-3/4" x 25-3/4" x 3-3/4" )
  • X7935 - Nominal size 20"x20"x5" ( Actual size 19-3/4" x 19-7/8" x 4-3/8" )
  • X8788 - Nominal size 20" x 26" x 5" ( Actual Size: 20" x 25-1/2" x 4 3/8" )
  • X8789 - Nominal size 17" x 26" x 5" ( Actual 16.31" x 25.47" x 4.31" )
  • X8790 - Nominal size 20" x 21" x 5" ( Actual Size 20" x 20 5/8" x 4 3/8" )
  • Y6604 - Nominal size 20" x 21" x 5" ( Actual Size 20" x 20-5/8" x 4-3/8" )
  • Y6605 - Nominal: Size: 16 x 26 x 5 (Actual Size 16 3/8 x 25 1/2 x 4 3/8)
  • Y6606 - Nominal: Size: 20 x 21 x 5 (Actual Size 20 x 20 5/8 x 4 3/8)

PCO Cartridge

  • Y6607 - Lennox Y6607 PC03-20-16 Air Purification Cartridge for PC03-20 and PC03-16 Model/Part Number: 613860-01 20 x 26 x 5

What are the Lennox MERV 16 Kits Available?

  • X8795 - includes: (1) MERV 16 pleated filter model X8788 (1) PCO metal insert model X8791 (2) UV lamps model X8794
  • X8796 - includes: (1) MERV 16 Filter X8789 (1) PCO metal insert X8792 catalyst (2) X8794 UV lamps
  • X8797 - (1) MERV 16 pleated filter model X8790 (1) PCO metal insert model X8793 (2) UV Lamps Model X8794
  • X8345 Maintenance Kit for PCO-20C PureAir Air Cleaner. MAINTENANCE KIT INCLUDES: (1) MERV 16 pleated filter model X6669 (1) Catalyst Insert - Model 75X66 (new 1" design) (6) UV Lamps Model X8149 (Formerly 10M35)
  • X8346 - (4) UV-A lamp (1) MERV 16 17x26x4 Filter
  • X8347 - (1) MERV 16 pleated filter model X6666 (1) Catalyst Insert - Model 75X73 (new 1 inch design) (4) UV Lamps Model X8149 (Formerly 10M35)
  • Y6608 - (1)20" x 26 "x 5" filter - Y6604 (1) catalyst - Y6607 UV lamps - X8794
  • Y6612 - (1) MERV 16 Carbon Filter Y6605 16x26x5 (1) PUREAIR CARTRIDGE Y6607 (1) UVA LAMP (X8794)
  • Y6616 - (1) Y6606: Healthy Climate Carbon Clean 16 Filter (1) Y6621: PCO cartridge (1) X8794 UVA lamp

Comparing Lennox to other Brands: Find Your Filter By Brand

Atomic Filters carries Top Brands Like Lennox Furnace Filters and Carrier EZ Flex Filters at the Best Prices with Free Shipping. Looking for Lennox Healthy Climate Filters or Lennox X6673 you will find a wide selection available. Lennox makes superior quality air filters. Atomic Filters stocks an extensive selection of the Lennox brand air filters including the popular X6675 air filters. The X6673 also known as the X6673 Air Cleaner Filter Media for HCC20-28 - 20x25x5 is compatible with a wide variety of systems including Honeywell, Trion Airbear and Carrier. It is however important when looking for a compatible filter to make sure it is compatible with the exact model.

How to Find the Right Lennox Air Filter for You Using the MERV Rating System

Shop Lennox Air Filters

Home Air Filters: What You Need to Know About Air Filter Simplified

We are going give you a simple way to pick the right air filter for your home because choosing the best air conditioner filter for your allergies can sometime be a confusing task. The simple reason is that most people are not experts on their heating and air conditioning systems and generally rely on the recommendation of the company that services their HVAC (Heating Ventilation Air Conditioning) equipment.

What Type of Air Filter do I Currently have In My Home?

The MERV (Minimum Efficiency Reporting Value) rating system was designed to help tell how well an air filter removes particles from the air. What is MERV rating of the filter in your home? You may not even know because, more often than not, the company that services your HVAC system replaces the air filters during the service call. Each air return has a grill that open so that you can replace your air filter. Depending on the size of your home you may have one air return to several. When replacing filters I see a lot of contractors use a cheap flat panel air filters with no MERV rating or a very low MERV rating. I have asked contractor many times when they put that filter in over the years and the answer is always the same. "This is the kind of air filter and I use is my self, those expensive air filters are a waste of money". Most people do not know much about how their HVAC system works so they just rely on what their contractor says. Basically all these cheap air filters do is protect your HVAC equipment from large dust and lint. Essentially the cheap air filters with no MERV ratings can be so porous that particles that can damage your HVAC equipment, can pass right through the filter. Good air filters can protect the air quality in your home and do not have to be expensive.

Lennox Merv 16 Filter

The Lennox X6675 Air Filter represents the finest quality filter on the market, with the most extreme and efficient particle filtration available just below that of a complete HEPA system. Lennox Industries is currently one of the few manufacturer to offer a MERV 16 filter, and the X6675 in the 20″ x 25″ x 5″ is one of the most popular sizes. Atomic stock the most popular annual maintenance kits such as the X8796, X8795 and the X8797 and offer dscount pricing with free shipping.

For Allergy suffers Healthy Climate Carbon Clean 16 Media Air Cleaner

To protect those in your family who suffers from allergies or other respiratory irritants, this filter is very best filter at eliminating irritating particles from the indoor air, and will help keep you and your family allergen free and healthy.

Shop Lennox Furnace Filters

Using a high quality filter, will help ensure that your system is protected and operated at peak performance, efficiency and effectiveness for your heating and cooling unit.

Carbon Clean 16 Model hcf20-16 Discounts

The OEM Lennox Healthy Climate MERV 16 Media Air Cleaner is a High-efficiency media filter is available new at Atomic Filters for a Discounted price with free Shipping. When you buy the is filter you get a high Merv(MERV 16/CADR 1900) and Up to 95% efficiency in removing circulated dust and other particles from 3 microns and up to 95% efficient in removing mold spores and other bioaerosols from 3 microns.

Changing Your Lennox Filter: Note the size printed on the filter frame

When you removed an old filter, check its size so you can be sure you have the correct filter for replacement. If you have any questions about the size you need, you can refer to the owner’s manual for your furnace or air handler.

How do I know what size filter to buy for my furnace?

  1. Check Your Current Filter Actual Size. Filters are labeled by nominal Size which is a round number. The actual size is the true measured dimensions of the filter by Length, Width and Depth. LxWxD for instance a 16x20x1 filter may have a nominal size of 16x20x1 but an actual size of 15.5x19.5x.75. Actual sizes of filters can vary by manufacturer. Some filters may include the actual size on the filter, otherwise you can simply measure to find the actual size of the filter.
  2. Check for Filter Model Number. Whole House filters are usually a filter that is about 3 to 6 inches thick. The best way to find a compatible replacement is to find a filter that is compatible with your current filters model number. Lennox filters for instance list compatible filter model numbers for Honeywell, Trion Air Bear and Carrier on the side of their filter.
  3. Manually Measure your current filters LxWxD(LengthxWidthxDepth) to get the actual size.

Where is the filter on my Lennox furnace?

  1. Check for the Filter Compartment before the Furnace equipment. Lennox Filters usually have the model number on the side of the filter. Lennox furnaces may have a compartment by the blower for a 1 inch filter or 1 inch vent filters in the return vents.
  2. Check for Filter Cabinet: If your system has a Lennox wholehouse filter you will probably have a filter cabinet containing the filter next to the air handler.

What is a MERV 16 filter?

A MERV 16 filter is a highly efficient filter capturing more than 95% of particles in the range from 0.03 to 10 micrometers which each pass through the filter. Lennox make residential MERV 16 filters that can work with Lennox systems and be used as upgrades to specific Carrier, Trion AirBear, and Honeywell systems. MERV(Minimum Efficiency Reporting Value) is a rating system create by ASHRAE(American Society of Heating, Refrigerating and Air-Conditioning Engineers) to measure the efficiency of air filters. MERV 8 is about the Level that begins to protect the air in your home. The higher the MERV rating the more efficiently smaller particles are filtered out of the air with greater efficiency.

How do I know what HVAC filter I need?

  1. Check Actual Size: Air filters are labeled with the Nominal Size(varies by Manufacturer and Model) which can be a rounded number. For instance a Lennox X6670 filter has a Nominal Size of 16" X 25" X 5" but an Actual Size 15-3/4" X 24-3/4" X 4-3/8". A 16x25x5 from Lennox may not be compatible with a 16x25x5 model from another manufacturer because they may have a different actual size.
  2. Measure Actual Size of your current filter. Use a measuring tape and find the LxWxD(Length, Width and Depth of your current filter)
  3. Check compatibility by Model Number. Filters may have a list of Models from Various Manufacturers which are compatible with the filter you need. Beware many filters models number are very similar, double check the actual size(true measured dimensions of the filter) to make sure you have the right filter.
  4. Find the Right Filter Rating: MERV(Minimum Efficiency Reporting Value) is a rating system for air filters create by ASHRAE(American Society of Heating, Refrigerating and Air-Conditioning Engineers) to measure the efficiency of air filters. Some companies use their own rating system such as Home Depot uses FPR(FILTER PERFORMANCE RATING) and 3M uses MPR(MICRO-PARTICLE PERFORMANCE).
  5. MERV 8(comparable to MPR 600 and FPR 5) is a good level to begin to protect air quality in your home. MERV 11( Comparable MPR 1000-1200 FPR 7)and MERV 13(Comparable MPR 1500-1900 FPR 10) are used in superior commercial buildings and in homes with allergy sufferer. MERV 15 and MERV 16 are among the top residential air/furnace filters available.

What MERV filter should I use?

  1. Find the Right Filter Rating: MERV(Minimum Efficiency Reporting Value) is a rating system for air filters create by ASHRAE(American Society of Heating, Refrigerating and Air-Conditioning Engineers) to measure the efficiency of air filters. Some companies use their own rating system such as Home Depot uses FPR(FILTER PERFORMANCE RATING) and 3M uses MPR(MICRO-PARTICLE PERFORMANCE).
  2. MERV 8(comparable to MPR 600 and FPR 5) is a good level to begin to protect air quality in your home. MERV 11( Comparable MPR 1000-1200 FPR 7)and MERV 13(Comparable MPR 1500-1900 FPR 10) are used in superior commercial buildings and in homes with allergy sufferer. MERV 15 and MERV 16 are among the top residential air/furnace filters available.

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