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Lennox 16x25x5 X6670 MERV 11 box replacement filter For HCC16-28 ( Actual Size: 15 3/4 x 24 3/4 x 4 3/8 ) Best Price

Lennox 16x25x5 X6670 MERV 11 box replacement filter For HCC16-28 ( Actual Size: 15 3/4  X 24 3/4 X 4 3/8 ) Best Price Free Shipping

Lennox Model X6670 Air Cleaner Filter Media - 16" x 25" x 5" (2-Pack) FEATURES: Factory original BMAC Healthy Climate Media Electrostatically charged disposable media Captures dust mites, pollen, mold spores, pet dander and other contaminants down to 0.3 microns Synthetic media offers large surface area for maximum dirt holding capacities with minimum air resistance Media is certified to UL 900 standard. UL classification - Class 2 Replace every 6 months under normal use SPECIFICATIONS: Nominal Dimensions: 16" X 25" X 5" Actual Dimensions 15-3/4" X 24-3/4" X 4-3/8" MERV 11 Fits Air Cleaner Model HCC16-28 (X6660) Same as part # HCF16-10.
  • MERV 11
  • Actual Size: 15-3/4" X 24-3/4" X 4-3/8"
  • 2 Filters
  • Nominal Size: 16" x 25" x 5"
  • Manufactured by Lennox

X6670  Nominal Size: 16" x 25" x 5" ( Actual Size: 15-3/4" X 24-3/4" X 4-3/8" ) Free Shipping Best Price

Lennox Elite Furnace Filter Sizes Lookup

Lennox MERV 16 Filters for HVAC

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" )
  • 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" )

MERV 16 Kits

  • 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
  • X8347 - (1) MERV 16 pleated filter model X6666 (1) Catalyst Insert - Model 75X73 (new 1" design) (4) UV Lamps Model X8149 (Formerly 10M35)



Popular Lennox Air Filters by Model Number Search 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: 21" x 26" x 4"  ( Actual Size 20 3/4" X 25 3/4" X 3 3/4" )

X6664 Nominal size: 17" x 26" x 4" - ( Actual size 16-1/2" x 25-7/8" x 3-15/16" )

X0444 Nominal size: 28" x 17" x 6" -  (  Actual size: " )

X0445 Nominal Size: 25" x 20" x 6"  

See entire list at the end of this Article  

Air filters are critical components of your heating and cooling system. You 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.

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 Parts 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 contaminants are in the air in my home

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 Home Air Filters MERV ratings simplified

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

X6675 Lennox 20x25x5 MERV 16 Filter Media for HCC20-28 sold by Atomic Filters

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.

Find Your Lennox Filter by Size or Model Number

To Protect the Air in Your Family Home You MUST Change the Air Filters 

   Keeping your Heating Ventilation and Air Conditioning unit running smoothly helps maintain the ideal temperature for your living home. It’s best to change home air filters on a timely basis, and avoid the potential problems may be prevented with proper maintenance of your HVAC system. Knowing the damage improper maintenance can cause to your system, may be all the motivation you need to stay on top of changing your filters.

Avoid Higher Power Bills & Costly Repair or Replacement of HVAC

   The first symptom of a clogged air filter, which has not been changed in a timely manner, can cause is that rooms take longer to cool or heat up. That’s because the dusty filter doesn’t allow good air flow through the ducts. That forces the unit to work harder, run longer, cost you more money and put unnecessary wear and tear on your HVAC unit ultimately reducing the lifespan of the unit. No one wants to pay more for utility bills than they should. Having the best air filter in your home such as the 20x20x1 MERV 13 Allergy Elite from Atomic or the Atomic 16x20x1 MERV 11 Allergy air filter allows the best air and equipment protection and the optimal airflow for your HVAC system. Atomics 16x24x1 MERV 13 air filter is the perfect filter to remove allergy causing pollutant from your homes living area. 

Atomic 16x20x1 Allergy Elite MERV 13 Air Filters

Dangerous Indoor Air Quality

   Not changing the filter in your home as often as you should, will reduce the air quality inside you family home. You will have a higher concentration of some of the contaminants listed below:

  • Pollen
  • Dust
  • Pet dander
  • Smoke
  • Bacteria
  • Dust mites

Use an Atomic MERV 13 air filters in your home for the best possible air quality. Additionally, it’s recommended for you to change the filters at least on the manufacturer recommended change schedule optimal air quality.

Find The Right Air Replacement Filter Brand and Size For Your Home 

   Completing this simple task on schedule, you can increase the efficiency of your unit and improve the air quality for your family at the same time. It only takes a minute to do, but protecting your family is more than worth it.

Replacing Your Lennox Furnace Filter

Lennox Healthy Climate Furnace Filters provide a filtration solution that takes more out of your air. Today’s homes are well built and better insulated which is great for energy savings, but it also means that millions of airborne particles are trapped indoors, where they continue to circulate throughout your home and the air your family breathes. The Healthy Climate® Carbon Clean 16 combines industry-leading MERV 16 filtration with a coconut-activated carbon coated fiber matrix that works with your heating and cooling system to provide a thorough,whole-home solution to remove these particles and improve the your indoor air quality.

Find The Right Size Lennox Filter 

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.


Find The Honeywell Whole House Air Filters You Need at The Best Price

   Atomic Filters sell the most popular whole house air filters at the best prices from Manufactures including Honeywell, Lennox, Aprilaire, Trion Airbear, Skuttle and Carrier, plus many more. We also manufacture Atomic Filters compatible filters for all of these brands.  

Important Tips for Buying Your Air Filters Online and Avoid Costly Mistakes

It can be fun to go to Lowes or Home Depot Saturday morning and work on a project for your home, but it is probably not the best place to buy air filters.  You need to replace your filters on a regular basis to protect your HVAC equipment and to protect your home’s air quality.

Buy Air Filters in Bulk and Save Money

Most single filters packaged for retail are priced very high compared to the low price you can purchase quality filters in bulk. For instance, a single 20x20x1 Filtrete 1500 Ultra Allergen Filter which is the equivalent of the Atomic 20x20x1 MERV 13 Allergy Elite Pleated Air Filter, sells at a premium around $17.87. In Comparison, the Atomic Brand 20x20x1 air filters which are sold in bulk as a case of 6 sells for $54.99 or $9.08 per filter.

# 2 The Most Common Mistake Buying the Wrong Filter: Nominal VS Actual Size

 The number one mistake you are likely to make purchasing filters online is purchasing the wrong size filter. This is a big hassle because you have to send back the incorrect filter, which may be a different price than the filter you needed, and could even cost you return shipping. You may need to wait for a refund and/or repurchase the correct filter. Understanding filter sizing can save you both time and money.

How to get the right furnace filter size- actual size and nominal size explained

Nominal Filter Size is the main culprit for incorrectly purchased filters. The Nominal Size is the dimensions used to Label the filter, but are usually rounded numbers and not the actual size of the filter. For instance, a filter's nominal size may be 16x20x1. These dimensions are a rounded value on the filters actual measurements. The actual measurements on this filter may be 15.5x19.5x.75, but that could vary by brand and manufacturer. So in order to make sure you have the correct size filter, especially if you are replacing with a different brand it is important to confirm the actual size on the filter. When purchasing filters on the internet, the Nominal size is usually found in the product title.

Actual Filter Size: Making the Correct Replacement Filter Purchase

The actual size, as you may have guessed, is the actual dimensions of the filter by length, width and thickness. This size is usually on the filter right below the Nominal size and is usually labeled as the actual size. When you are buying a filter online the actual size is sometimes in the product bullet point or the product description. If your filter does not have actual dimensions on the outside of the filter, you can measure you filter to get the correct dimensions. Some brands have a foam gasket on the outside of the filter, in this case you will want to make sure you have a compatible actual size and that it also has the foam to insure a snug fit. Check to see if the filter list compatible brands and model numbers. These are usually in the filter descriptions and bullets of the filter detail page. On Amazon you can usually find this information farther down the product page below the fold or click the link for additional product details.

# 3 The Most Costly Mistake, Using The Wrong Filter: How To Get the Right Filter?

Find the Right Filter for Your System? An Explanation of MERV

When considering the air quality in your home, you should consider an air filter with highest level of efficiency that is compatible with your HVAC system. Minimum efficiency reporting value, known as the MERV rating, is a measurement scale designed in 1987 by the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) to rate the effectiveness of air filters.

How to Compare Filters

Comparing MERV ratings is a good way to begin to comparing filters. A Pleated filter with a rating of at least MERV 8 is better for airflow which is going to help your HVAC system operate more efficiently while still protecting your air quality.  Home Air Filters have MERV ratings that range from 0 to 16. Most new homes can support an air filter with a MERV rating from 8 to 13 filters, but MERV 15 and 16 filters require a system that can support the necessary air flow.

Find Your Filter Brand and Model Number

Depending on your HVAC sytems you may have return vent filters or a whole house filter. Vent filters, as pictured above are more straight forward to find the actual size and correct replacement.

Buying the right 20x20x1 Air filter Atomic

The image above is from an Atomic Filters 20x20x1 MERV 13 product listing. In addition to the filter having the Nominal size and actual size on the product image, the product title list the nominal size. The actual size for the filter is listed in the bullet points. Once you know what information to look for, making the purchase decision straight forward. 

Whole house furnace filters often have compatible models across brands, but you need to insure that the replacement filter is compatible with your systems filter.This is best done by checking the product description to make sure your current filter model is listed.

Find The Right Whole House Furnace Filter by Model number and brand

 You can usually find the proper replacement filter model  in your HVAC user manual. In the Amazon listing pictured for this Lennox Filter, you can see all of the information you would need to make the correct purchase.

#1 Shows the Nominal Size of the Filter in product title along with the Brand.

#2 Shows the Lennox Model number X6673 for this furnace filter.

#3 shows other brands compatible model numbers this filter can replace.

 #4 shows additional details on the filter including the actual size of the filter. 


# 4 The Effects of Choosing The Wrong Filter for Your System

Using the wrong air filter over time could end up damaging the heating and cooling system itself. By reducing your system's efficiency, you could notice higher utility bills. When you use the wrong size air filter, or you install it incorrectly, the filter can’t effectively prevent dust from accumulating on the system’s coils motors and blowers. You’ll end up with a dirty furnace that can’t properly perform, and all of that debris could end up harming the system’s internal components.

Get the Best Quality Home Air Filter for Your System 

While you may think that using a more efficient filter with a MERV rating from 15 to 16 would be the smart option for allergy suffers and improved air quality, not every system is designed to work with these highly rated filters. If your system isn’t compatible, these filters will drastically restrict airflow. You can still have a high-efficiency filter, but make sure it’s one that is designed to work with your HVAC system.

You can still have a high-efficiency filter, but make sure it’s one that is designed to work with your HVAC system.

Using an air filter with too high of a MERV for your system can have a similar effect of a clogged air filter, if a filter becomes clogged, airflow will be reduced, which causes the fan motor to work harder. This means more energy is used, which will increase your utility bill. Eventually, the fan motor can burn out, resulting in overheating and failure of the entire system. Overheating can cause a heat build up around the heat exchanger in the winter which can cause the heat exchanger to crack. A cracked heat exchanger is a serious issue and needs to be replaced immediately to prevent system failure, fire or the release of carbon monoxide gas into the home.

Dirty Air Filters Can Cost You Precious Dollars

Having Dirty filters can allow components within the HVAC system to get dirty. This causes problems such as dust and debris on cooling coils, which can lead to freezing on the evaporator coils. Frozen coils block airflow, reducing the system’s ability to maintain indoor climate control which causes the system to work harder with less efficiency increasing your energy bill. Left unchecked, the system will fail and require a costly replacement.

Dirty Air Filters can cost you money

Dirt in The Duct Work- Dirt in Your Air

Dirty air filters can lead to excess dirt that will end up in your ductwork, and you’ll need to have the ducts cleaned more frequently. Dirty ducts compromise air quality and some of the dirt can end up back in the HVAC system.

#5 Consider a Subscription and Save

Once you find the right air filter for your systems, consider getting a subscription and make it automatic. This will ensure your HVAC system is always protected from the most preventable causes of failure and you will have one less thing to remember. Companies often offer discounts on subscriptions saving you even more money.  

Companies often offer a discounts on subscriptions saving you even more money.  

How are you going to Buy You Air Filters?

Related Links

Buy Air Filters in Bulk

Buy Whole House Air Filters

Buy a Replacement Air Purifier

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