Top 10 Best 20x20x4 Furnace Filters
of November 2024
1
Best Choice
Filtrete
Filtrete
Filtrete 20x20x4 Air Filter MPR 1550 DP MERV 12, Healthy Living Ultra Allergen Deep Pleat, 4-Pack, Fits Lennox & Honeywell Devices (exact dimensions 19.88 x 19.88 x 4.31)
10
Exceptional
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2
Best Value
Filterbuy
Filterbuy
Filterbuy 20x20x4 Air Filter MERV 11 Allergen Defense (2-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 19.38 x 19.38 x 3.63 Inches)
9.9
Exceptional
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3
Filtrete
Filtrete
Filtrete 20x20x4 Air Filter MPR 1550 DP MERV 12, Healthy Living Ultra Allergen Deep Pleat, 2-Pack, Fits Lennox & Honeywell Devices (exact dimensions 19.88x19.88x4.31)
9.8
Exceptional
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4
Nordic Pure
Nordic Pure
Nordic Pure 20x20x4 MERV 12 Pleated AC Furnace Air Filters 2 Pack
9.7
Exceptional
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5
Aerostar
Aerostar
Aerostar 20x20x4 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 19 1/2"x19 1/2"x3 3/4")
9.6
Exceptional
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6
Aerostar
Aerostar
Aerostar 20x20x4 MERV 11 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 19 1/2"x19 1/2"x3 3/4")
9.5
Excellent
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7
Honeywell 20x20x4 Air Filter Replacement - FC100A1011 HVAC Furnace Filters with Merv 11 Filter Media, AC Filter with Homequip Disposal Bag 2-Pack (Actual Size: 19.94 x 19.75 x 4.38 Inches)
9.4
Excellent
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8
Glasfloss
Glasfloss
Glasfloss ZL 20x20x4 MERV 10 AC & Furnace Filters. 6 Pack. Actual Size: 19-1/2 x 19-1/2 x 3-3/4
9.3
Excellent
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9
Pamlico Air
Pamlico Air
Pamlico Air 20x20x4 MERV 8 Pleated HVAC AC Furnace 4'' Air Filters by Pamlico. Case of 6. Actual Size: 19-1/2 x 19-1/2 x 3-3/4, White
9.2
Excellent
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10
BestAir
BestAir
BestAir HW2020-8R AC Furnace Air Filter, 20" x 20" x 4", MERV 8, Removes Allergens & Contaminants, Fits 100%, For Honeywell Models, Pack of 1
9.1
Excellent
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About 20x20x4 Furnace Filters
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Filtrete 20x20x4 Air Filter MPR 1550 DP MERV 12, Healthy Living Ultra Allergen Deep Pleat, 4-Pack, Fits Lennox & Honeywell Devices (exact dimensions 19.88 x 19.88 x 4.31)
Actual filter size is 19.88 in x 19.88 in x 4.31 in. This filter is compatible with Honeywell furnaces calling for a 4 filter. The higher the MPR, the more microparticles--such as pollen, pet dander, smoke, bacteria and viruses--your filter will capture from the air passing through it. FOR OPTIMAL PERFORMANCE of your heating cooling system or HVAC system, change your home air filter at least every 12 months for 4 in. A dirty filter will slow down air flow and make the system work harder to keep you warm or cool--wasting energy. Sign-up for a filter change reminder program that works for you. OUTPERFORMS FIBERGLASS, WASHABLE AND NON-ELECTROSTATIC 3-month pleated 1 in. home air filters for your furnace, air conditioner or HVAC system. DESIGNED WITH EXCLUSIVE Filtrete Brand 3-in-1 technology from 3M to trap unwanted air particles while letting cleaner air flow through. ATTRACTS AND CAPTURES microscopic particles such as smoke, cough and sneeze debris, bacteria and viruses--and large particles, including lint, household dust and pollen. 54 SMALL PARTICLE CAPTURE, like bacteria and particles that carry viruses captured is based on ASHRAE 52.2 testing for 0.3 to 1 micron particles from the air passing through the filter, which relates to HVAC industry standard efficiency testing. Filtrete MPR 1550 has a rating of MERV 12. MPR 1550. Captures 97-Percent of large airborne allergens, such as pollen, mold spores and dust mite debris. Robust frame construction enhances quality and ensures high durability at the shelf. Lasts up to 12 months. Available in 3 sizes to fit the most common air cleaner systems on the market, including aprilairespace-gard, trion, air bear and Honeywell.
Filterbuy 20x20x4 Air Filter MERV 11 Allergen Defense (2-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 19.38 x 19.38 x 3.63 Inches)
20x20x4 replacement air filters for your furnace, air conditioner, heat pump, or HVAC system actual size 19.38 x 19.38 x 3.63. MERV 11 synthetic media comparable with MPR 1000 - 1200 FPR 7 protects homes from pets, allergies, and more by trapping 95 of airborne particles without impacting air flow. High-quality construction features an electrostatically charged, pleated design that captures more harmful particles and prolongs the products lifespan by 3 times that of fiberglass models. Industrial-grade beverage board frames with dual wire backings outperform standard cardboard designs. All components are manufactured within the United States and designed with recyclable materials.
Filtrete 20x20x4 Air Filter MPR 1550 DP MERV 12, Healthy Living Ultra Allergen Deep Pleat, 2-Pack, Fits Lennox & Honeywell Devices (exact dimensions 19.88x19.88x4.31)
OUTPERFORMS FIBERGLASS, WASHABLE AND NON-ELECTROSTATIC 3-month pleated 1 in. home air filters for your furnace, air conditioner or HVAC system. DESIGNED WITH EXCLUSIVE Filtrete Brand 3-in-1 technology from 3M to trap unwanted air particles while letting cleaner air flow through. ATTRACTS AND CAPTURES microscopic particles such as smoke, cough and sneeze debris, bacteria and viruses--and large particles, including lint, household dust and pollen. 1550 MPR has a rating of MERV 12. The higher the MPR, the more microparticles--such as pollen, pet dander, smoke, bacteria and viruses--your filter will capture from the air passing through it. 54 SMALL PARTICLE CAPTURE, like bacteria and particles that carry viruses captured is based on ASHRAE 52.2 testing for 0.3 to 1 micron particles from the air passing through the filter, which relates to HVAC industry standard efficiency testing. CERTIFIED as asthma allergy friendly As outlined in report ASCR 1246-01. FIND YOUR SIZE MPR 1000, MPR 1200 and MPR 1550 available in 4 in., 4 in. slim fit and 5 in. thick air filters. FOR OPTIMAL PERFORMANCE of your heating cooling system or HVAC system, change your home air filter at least every 90 days for 1in. filters, and at least every 12 months for 4in. and 5in. Filters. A dirty filter will slow down air flow and make the system work harder to keep you warm or cool--wasting energy. Sign-up for a filter change reminder program that works for you.
Nordic Pure 20x20x4 MERV 12 Pleated AC Furnace Air Filters 2 Pack
Nominal Size 20 x 20 x 4, Actual Size 19 12 x 19 12 x 3 58 19.5 x 19.5 x 3.63. Measure your air filter for the exact size and compare it to our actual size to ensure proper fit.. If you are replacing a Honeywell or Lennox 20x20x4 or an air filter with an MPR rating with an actual depth of 4 38, please see our 20x20x5 4 38 actual depth. Nordic Pure MERV 12 is equivalent to MPR 1500-1900. Made in the USA.
Aerostar 20x20x4 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 19 1/2"x19 1/2"x3 3/4")
Nominal size 20x20x4 Actual size 19 12x19 12x3 34 This MERV 8 filter is comparable with MPR 600 FPR 5.. Designed to filter microscopic particles such as lint, dust mites, spores, and pollen. Simple to install and a cost-effective step towards a healthier home environment. Filters that are three inches thick or more can be changed any time after 90 days.. 100 synthetic electrostatic media for high efficiency with low air flow resistance. Manufactured by Filtration Group, a world-leading manufacturer and supplier of filtration solutions making the world safer, healthier more productive.
Aerostar 20x20x4 MERV 11 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 19 1/2"x19 1/2"x3 3/4")
Nominal size 20x20x4 Actual size 19 12x19 12x3 34 This MERV 11 filter is comparable with MPR 1000-1200 FPR 7.. Designed to filter microscopic particles such as lint, dust mites, spores, pollen, pet dander, fine dust, and smoke. Made with electrostatically charged synthetic material for high filtration efficiency with low air flow resistance. Simple to install and a cost-effective step towards a healthier home environment. Replace 3-5 filters every 3-6 months.. 100 synthetic electrostatic media for high efficiency with low air flow resistance. Manufactured by Filtration Group, a world-leading manufacturer and supplier of filtration solutions making the world safer, healthier more productive.
Honeywell 20x20x4 Air Filter Replacement - FC100A1011 HVAC Furnace Filters with Merv 11 Filter Media, AC Filter with Homequip Disposal Bag 2-Pack (Actual Size: 19.94 x 19.75 x 4.38 Inches)
Honeywell FC100A1011 20x20x4 Replacement Filter, Minimum Efficiency Reporting Value MERV 11. High efficiency media filter captures particles as small as 0.3 micron. Requires no maintenance except periodic every 6-12 months, super easy, in-and-out media filter replacement.. Compatibility - This 4 inch air filter is designed to fit most 20x20x4 models including all Honeywell and many of Aprilaire, Space-Gard, and Trion Air Bear models. Homequip Filter Disposal Bag lets you dispose of your old filter properly.
Glasfloss ZL 20x20x4 MERV 10 AC & Furnace Filters. 6 Pack. Actual Size: 19-1/2 x 19-1/2 x 3-3/4
Actual Size 19.5 x 19.5 x 3.75 Nominal Size 20x20x4. MERV 10 Efficiency with MERV 8 Air Flow .25 W.C.. Air Filters for homes, business, schools, apartments, hotels and industrial.. Durable and sturdy galvanized metal backing.. Made in the USA. For optimal performance, recommended to change at least every 3 months..
Pamlico Air 20x20x4 MERV 8 Pleated HVAC AC Furnace 4'' Air Filters by Pamlico. Case of 6. Actual Size: 19-1/2 x 19-1/2 x 3-3/4, White
NOMINAL SIZE 20x20x4 ACTUAL MEASUREMENTS 19.5 x 19.5 x 3.75 Does not replace 5 or 4-38 depth filters.. 20x20x4 FILTER PERFORMANCE RATING MERV 8, MPR 600, FPR 5. Captures 90 of airborne particles without inhibiting air flow. Traps particles such as dust, mold spores, pollen, lint, pet dander, debris, hair.. ENHANCED AIR FILTRATION Our air filters are made using an advanced pleated technology that offers more air coverage, improved particle capture performance and helps extends the life of your furnace, air conditioner, or HVAC system.. HIGH QUALITY CONTRUCTION Constructed from a two-piece frame provides rigidity and durability. Electrostatically charged pleats captures more harmful particles and prolongs the products lifespan by up to 3 times over fiberglass filters. Industrial-grade dual side beverage board frames outperforms standard one-sided cardboard designs.. MANUFACTURED in the USA. Suggested to replace at least every 3 months for optimal performance..
BestAir HW2020-8R AC Furnace Air Filter, 20" x 20" x 4", MERV 8, Removes Allergens & Contaminants, Fits 100%, For Honeywell Models, Pack of 1
Filters out unwanted particles including dust lint, mold particles, pollen, bacteria, and virus carriers while allowing cleaner air to flow through. Designed to perform with high efficiency and minimum pressure drop conserving energy and lowering costs. Minimum Efficiency Reporting Value MERV of 8 generating good filtration with fewer particles and contaminants that pass through the filter. Pleated design allows the BestAir filter to trap up to 79 of airborne particles from 0. 3 to 10. 0 microns Long life filter design for long lasting performance up to 12 months.