10 Best Lennox Y6604 20x26x5 Merv 16 Carbon Clean Filter of 2025

Tested and Reviewed: Top 10 Lennox Y6604 20x26x5 Merv 16 Carbon Clean Filter deals with expert ratings from 8.1 to a perfect 10

May 2025 Edition

Editor's Choice

9.7

Healthy Climate

Lennox X6675 20x25x5 Air Filter, Lennox Healthy Climate Carbon Clean Merv 16 Home Furnace Filter for HVAC system 2 Pack with Cleaning Cloth

Editor's bottom line:

“This lennox y6604 20x26x5 merv 16 carbon clean filter is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

X6675 20x25x5 Air Filter Replacement for your furnace, air conditioner, or HVAC system. The filter and is suitable for hospitals, homes, or just about anywhere.
Easy Replacement - This 20x25x5 furnace filter has the ability to last up to 1 year! Depending on your home's condition, the filter may be replaced every 6-12 months.
Use the Wholesalehome cloth to clean your furnace or air handler of all dirt before placing your new furnace filter in.
Highly Efficient - Being Merv 16, the carbon coated fiber matrix this filter will provide extra deep filtration to help you maintain optimal air quality in your home.
These 5 inch air filters are compatible with HCC20-28 models as well as many Honeywell, Carrier, and Trion Air Bear models that accept a 20x25x5 filter.

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Picked by 253 people today

9.5

Save 7%

Miory

2 Packs X8788 MERV 16 Carbon Filter 20"x26"x5" MERV 16 Filter Replace for Lennox X8788 and PCO20-28 PureAir,Black

7% OffFree Shipping

Main Highlights

True MERV 16 Filtration:The x8788 merv 16 filter 20x26x5 is made of coconut activated and carbon coated fiber matrix, and can capture 99.97% of particles less than 0.3 microns,as well as over 95% of particles greater than 0.01 microns,providing the highest quality air environment for your family
OEM Specification:Our x8788 20x26x5 air filter merv 16 is upgraded and made by OEM production standard, the actual size is: 20 x25.4x 4.37", which can be perfectly compatible with PCO20-28 and x8788 merv 16 filterso the x8788 merv 16 filter can perfectly replace the old x8788 filter in your home and enjoy fresh air easily
Higher Quality: The 20x26x5 air filter merv 16 has a pleated design for more filtration area. The outer frame of our x8788 merv 16 filter is made of heat and moisture resistant high quality material and the 20x26x5 air filter will last for 8-12 months, or you can replace it depending on your usage. In addition, we offer a 30-day warranty so you can try it with confidence
Simple to install:The installation of x8788 filter is very simple, you just need to spend 3-5 minutes to take out the old 20x26x5 air filter and push our new upgrade x8788 merv 16 filter 20x26x5 according to the airflow direction instructions on it, both can easily complete the installation without any tools
Excellent serviceYou will receive two brand new black x8788 merv 16 20x26x5 air filter .We are committed to doing our best to help you enjoy a higher quality of experience and life.

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9.5

Pitymody

Pitymody Y6604 MERV16 20x26x5 Furnace Replacement Filter Compatible with Lennox Y6604 PureAir PCO3-20-16 Air Purifier Cleaner Purification Systems, 2 Pack

Free Shipping

Main Highlights

CompatibilityThe Y6604 MERV16 20x26x5 Carbon Clean Home Furnace Filter is compatible with Y6604 PureAir PCO3-20-16 Air Cleaner Merv 16 Home Furnace Filter for HVAC System. Compare to Part #PCO3-20-16.
Merv 16 Efficient Filtering With its high-quality construction, The Y6604 Merv 16 carbon clean furnace filters can filter over 98% of impurities, providing you with the highest quality air environment.
Easy ReplacementThis Y6604 furnace filter can last up to 1 year! Depending on your home's condition, the filter may be replaced every 8-12 months. The PCO3-20-16 20x26x5 merv 16 air filter offers outstanding durability and reduces the frequency of replacements.
Size and InstallationThe actual dimensions of the Y6604 20x26x5 merv 16 air filter 2 pack Y6604 furnace filter replacement. The Y6604 filter replacement features a user-friendly design, allowing for hassle-free installation and replacement.
Satisfactory Service If you have any questions about the Y6604 20x26x5 merv 16 air filter, please feel free to contact us, we are committed to offering high-quality products and providing efficient customer service.

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9.2

HSIAMEN

HSIAMEN Y6604 MERV 16 Filter Carbon Compatible with Lennox Y6604 Air Purifier Cleaner for HVAC Furnace System, Part # PCO3-20-16, 20x26x5, 2-Pack

Free Shipping

Main Highlights

[COMPATIBLE]: HSIAMEN filter is compatible with Lennox air purifier cleaner purification systems model Y6604 MERV16 20x26x5 furnace replacement filter. Actual Size: 25.39"L x 20"W x 4.37"Th
[MERV 16 Filter]: Designed to eliminate most airb0rne particles including common aller9ens like p0llen and pet d@nder. With Y6604 air filter replacement, you can enjoy fresh air in your home and breathe easier
[ACT1VATED CARBON]: Features act1vated carbon material that eliminate most smells. Y6604 20x26x5 MERV 16 filter carbon is perfect for households with pets, cooking and sm0kers
[MAINTENANCE TIPS]: It is recommended to replace the Y6604 air filter every 8-12 MONTHS, depending on air quality and frequency of use
[RESPONSIVE SUPPORT] We offer 24/7 customer service support. If you have any questions or concerns, please don't hesitate to reach out to us. We are quite willing to improve our products and service

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9.0

Facecool

Facecool Y6604 20x26x5 merv 16 Furnace filter Compatible with Lennox and PureAir PCO3-20-16 Air Purifier Cleaner Purification Systems, for Healthy Climate and HVAC Furnace System

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Main Highlights

Compatibility: 1 pack of 20 x 26 x 5 MERV 16 carbon filter is compatible with Lennox PCO3-20-16 air purifier purification system
MERV 16 HEPA Filter: Electrostatically-charged synthetic material and extended surface pleats make it have a high dirt-holding capacity, works and fits just as well as the same brand
Regarding dimensions: The nominal size 20" x 26" x 5", The actual dimensions are 20 x 25.39 x 4.37
Long Filter Life: The strict production process, from the selection of raw materials to the professional operation of production, Facecool replacement filters are made to be durable & efficient for months
Customer Support: Lasts 12-18 months (The replacement period dependent on air quality and use). Feel free to contact us if there are any questions, we are committed to offering quality products and promise high-quality customer service

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8.8

Save 10%

Virego

One Pack Y6604 MERV 16 Filter, 20x26x5 Inches MERV16 Air Filter Compatible with PureAir PCO3-20-16 Air Purifier, Replacement with Lennox Y6604 Air Filter, Actual Size 20x25-1/2x4-3/8 Inches

10% OffFree Shipping

Main Highlights

100% Compatible: The Y6604 MERV16 air filter is accurately sized to fit perfectly with the PureAir PCO3-20-16 air purifier. Y6604 air filter with excellent air filtration efficiency features a pleated design that delivers clean air (please note: the actual Y6604 filter size is 20 x 25-1/2 x 4-3/8 inches).
MERV 16 RatingThe Y6604 MERV 16 air filter is capable of filtering 99.95% of airborne particles. The higher the MERV value of the air filter, the smaller the pore size and the fewer air particles that pass through. As a result, Y6604 MERV 16 air filter demonstrates unparalleled filtration capability, capturing airborne particles down to 0.3 microns
Longer LifespanY6604 MERV 16 air filter is capable of providing an industrial grade air filtration process without excessive maintenance.Y6604 air filter has more than 4 times the particle collection capacity of other filters and can last up to one year under normal conditions. We recommend that you replace the Y6604 air filter every 6 - 12 months
Improve LifeOur Y6604 Air Filter has 10-20 times more filter surface area than other filters and reduces pressure drop by 50% to effectively filter the air. Air quality problems can cause anxiety, insomnia, allergies and other problems that can affect your health. Using a Y6604 MERV 16 air filter can improve air quality, which in turn improves the quality of life for you and your family
Outstanding After-Sales ServiceAll of our products have passed our strict inspection before any shipments. If any problems occur when comes to using the Y6604 MERV 16 air filter, , and we will provide you with compensation service for your loss or replacement with a new product. If you have any questions about our Y6604 air filter or questions related to other problems, ,

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8.6

Monmagic

Upgrade Y6604 furnace filter, compatible with Lennox Y6604 - pureair PCO3-20-16 merv 16 filter- 20" x 26" x 5", Y6604 merv 16 filter 20x26x5,Access comfortable living environment 1 Pack

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Main Highlights

Compatibility With:lennox Y6604 merv 16 filter 20x26x5Part PCO3-20-16 PureAir filter, Y6604 merv 16 filter 20x26x5, Access comfortable living environment
High Efficiency Filtration: The Y6604 merv 16 filter 20x26x5 is an upgrade from the MERV 11 and MERV 13 models, handling up to 95% of airborne contaminants as small as 0.3, providing superior air purificati
Easy Installation:Y6604 merv 16 filter 20x26x5 is very simple and easy to operate,and Y6604 filter compatible with Lennox air filter for your Y6604 merv 16 filter or Air deal with Systems
Enhanced Air Quality: Y6604 merv 16 filter 20x26x5 Constructed with , this filter ensures reliable operation and extended service life for fresher, cleaner indoor air
Safeguard: Y6604 merv 16 filter And remember to replace it every 8-12 months for optimal performance. Enjoy fresher air every d

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8.3

Save 7%

HOMFILBIT

Y6604 MERV 16 20 x 26 x 5 Inch Efficient Air Filter Replacement Compatible with Lennox Y6604 PureAir PCO3-20-16 Air Purifier Cleaner Purification Systems

7% OffFree Shipping

Main Highlights

Compatible Models: y6604 20x26x5 merv 16 True Efficient Air Filter Perfectly Fits for PureAir PCO3-20-16 Air Purifier Cleaner Purification Systems.
Merv 16 Filtration system: 1-Pack y6604 20x26x5 merv 16 Filter With high -efficiency activated carbon. (MERV 16 air filter is able to capture air particles from 0.3 micros)
Storage and Use: Please store your filter in a dry place. Remove the plastic packaging before putting the new filter into the air purifier.
Performance: Y6604 air filter can efficiently capture almost all air particles, but some air particles can trigger some common symptoms that disrupt your sleep. Lack of adequate sleep causes daytime drowsiness, furthermore, affecting your productivity, For best performance, we recommend to replace the filter once every 12+ months.
Satisfactory after-sales service: If you have any questions about our Y6604 air filter or questions related to other problems, please feel free to contact us, and we will reply to you within 9 hours.

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8.1

Lennox

Lennox Healthy Climate Lennox X6672 16x25x5 Healthy Climate Carbon-Clean MERV 16 Filter Bundle with Same Day Supply Filter Change Reminder

Main Highlights

MERV 16 rating. Actual size: 15-3/4 x 24-3/4 x 4-3/8
Bundle includes a Same Day Supply reminder magnet (1 per filter) so you know when you last changed your filter without having to open your filter cabinet.
Filter lasts up to 1 year. As with any filtration product, replacement life cycle depends on the individual conditions and needs of the home.
Removes over 95% of particles ranging in size down to 0.3 micron and more than 90% of particles 0.01 microns and larger.
Filters are shipped in individual clear plastic bags that can be reused to dispose of your old filter.

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Best Value

8.1

Save 27%

Byseacore

Byseacore Y6604 20 x 26 x 5 MERV 16 Filter Replacement for Lennox PureAir PCO3-20-16 (Actual Size: 20” x 25.39” x 4.37”), 1 Count

27% OffFree Shipping

Main Highlights

Compatibility: Our 20 x 26 x 5 MERV 16 carbon filter is compatible with Lennox PCO3-20-16 air purifier purification system
MERV16 Rating Filter: Our Y6604 carbon clean filter combines MERV 16 filtration with an odor-removing, activated carbon-coated fiber matrix, can deal with 99% airborne particles as small as 3 m
1 Pack: Y6604 MERV 16 filter replacement for your furnace, air conditioner, heat pump, or HVAC system
Recommendation: Please replace the X8788 furnace filter once every 12 months or more often depending on the usage
Filter size: The nominal size 20" x 26" x 5", actual size: 20 x 25.39 x 4.37

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Our Best Overall Choice

Best Choice

9.7

Healthy Climate

Lennox X6675 20x25x5 Air Filter, Lennox Healthy Climate Carbon Clean Merv 16 Home Furnace Filter for HVAC system 2 Pack with Cleaning Cloth

Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

X6675 20x25x5 Air Filter Replacement for your furnace, air conditioner, or HVAC system. The filter and is suitable for hospitals, homes, or just about anywhere.
Easy Replacement - This 20x25x5 furnace filter has the ability to last up to 1 year! Depending on your home's condition, the filter may be replaced every 6-12 months.
Use the Wholesalehome cloth to clean your furnace or air handler of all dirt before placing your new furnace filter in.
Highly Efficient - Being Merv 16, the carbon coated fiber matrix this filter will provide extra deep filtration to help you maintain optimal air quality in your home.
These 5 inch air filters are compatible with HCC20-28 models as well as many Honeywell, Carrier, and Trion Air Bear models that accept a 20x25x5 filter.

Show Price

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