Top 10 21.5x21x5 Air Filter – Furnace Filters

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1. FilterBuy

#ad

Pleated Replacement HVAC AC Furnace Filters for Trane Perfect Fit 2-Pack, Silver, FilterBuy 21x21.5x5 Air Filter MERV 8

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FilterBuy #ad - Compatible models: trane Perfect Fit BAYFTAH21M. Merv 8 synthetic media comparable with mpr 600 & FPR 5 protects homes from dust, pollen, and more by trapping 90% of airborne particles without impacting air flow. 21x21. 5x5 replacement whole house air filters for your furnace, air conditioner, or HVAC system actual size: 20 x 21. 09 x 4. 97 inches. Industrial-grade beverage board recyclable frames with dual wire backings outperform standard cardboard designs. Electrostatically charged, pleated 100% US made filters capture more harmful particles and last 3x longer than fiberglass models.
BrandFilterBuy #ad
ManufacturerFilterBuy #ad
Height4.97 Inches
Length20 Inches
Weight7.5 Pounds
Width21.09 Inches
Part NumberTRF21.5x21x5M8pk2
ModelTRF21.5x21x5M8pk2

2. FilterBuy

#ad

Pleated Replacement HVAC AC Furnace Filter for Trane Perfect Fit Silver, FilterBuy 21x21.5x5 Air Filter MERV 8

#ad
FilterBuy #ad - Merv 8 synthetic media comparable with mpr 600 & FPR 5 protects homes from dust, pollen, and more by trapping 90% of airborne particles without impacting air flow. 21x21. 5x5 replacement whole house air filters for your furnace, air conditioner, or HVAC system actual size: 20 x 21. 09 x 4. 97 inches. Electrostatically charged, pleated 100% US made filters capture more harmful particles and last 3x longer than fiberglass models. Industrial-grade beverage board recyclable frames with dual wire backings outperform standard cardboard designs. Compatible models: trane Perfect Fit BAYFTAH21M.
BrandFilterBuy #ad
ManufacturerFilterBuy #ad
Height4.97 Inches
Length20 Inches
Weight3.75 Pounds
Width21.09 Inches
Part NumberTRF21x21.5x5M8pk1
ModelTRF21x21.5x5M8pk1

3. FilterBuy

#ad

FilterBuy 21x23.5x5 Air Filter MERV 13, Pleated Replacement HVAC AC Furnace Filters for Trane Perfect Fit 2-Pack, Platinum

#ad
FilterBuy #ad - Compatible models: trane Perfect Fit BAYFTAH23M. Industrial-grade beverage board recyclable frames with dual wire backings outperform standard cardboard designs. 21x23. 5x5 replacement whole house air filters for your furnace, air conditioner, or HVAC system actual size: 20 x 23. 09 x 4. 97 inches. Electrostatically charged, pleated 100% US made filters capture more harmful particles and last 3x longer than fiberglass models. Merv 13 synthetic media comparable with mpr 1500-1900 & FPR 10 protects homes optimally by trapping 98% of airborne particles without impacting air flow.
BrandFilterBuy #ad
ManufacturerFilterBuy #ad
Height4.97 Inches
Length20 Inches
Weight7.5 Pounds
Width23.09 Inches
Part NumberTRF21x23.5x5M13pk2
ModelTRF21x23.5x5M13pk2

4. FilterBuy

#ad

FilterBuy 21x21.5x5 Air Filter MERV 13, Pleated Replacement HVAC AC Furnace Filters for Trane Perfect Fit 2-Pack, Platinum

#ad
FilterBuy #ad - Merv 13 synthetic media comparable with mpr 1500-1900 & FPR 10 protects homes optimally by trapping 98% of airborne particles without impacting air flow. Compatible models: trane Perfect Fit BAYFTAH21M. 21x21. 5x5 replacement whole house air filters for your furnace, air conditioner, or HVAC system actual size: 20 x 21. 09 x 4. 97 inches. Industrial-grade beverage board recyclable frames with dual wire backings outperform standard cardboard designs. Electrostatically charged, pleated 100% US made filters capture more harmful particles and last 3x longer than fiberglass models.
BrandFilterBuy #ad
ManufacturerFilterBuy #ad
Height4.97 Inches
Length20 Inches
Weight7.5 Pounds
Width21.09 Inches
Part NumberTRF21.5x21x5M13pk2
ModelTRF21.5x21x5M13pk2

5. Filters Now

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Accumulair 21x21.5x5 20.1x21.1x5 MERV 8 Aftermarket Trane Replacement Filter

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Filters Now #ad - Lasts up to 3 months. Electrostatically charged filter media captures airborne allergens smaller than 1 micron. 20 times more efficient than ordinary fiberglass filters. Merv rating: 8. Nominal size 21x21. 5x5 actual size 201x21. 1x5.
BrandFilters Now #ad
ManufacturerAccumulair #ad
Height21.1 Inches
Length20.1 Inches
Weight20.1 Pounds
Width5 Inches
Part NumberDPFT21X21.5X5AM8
ModelDPFT21X21.5X5AM8

6. FilterBuy

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Silver, Pleated HVAC AC Furnace Filters 4-Pack, FilterBuy 20x21.5x1 Air Filter MERV 8

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FilterBuy #ad - 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.

20x21. 5x1 replacement air filters for your furnace, air conditioner, or HVAC system actual size: 19. 88 x 21. 50 x 075 inches. All components are manufactured within the United States and designed with recyclable materials. Industrial-grade beverage board frames with dual wire backings outperform standard cardboard designs. Merv 8 synthetic media comparable with mpr 600 & FPR 5 protects homes from dust, pollen, and more by trapping 90% of airborne particles without impacting air flow.
BrandFilterBuy #ad
ManufacturerFilterBuy #ad
Height0.75 Inches
Length19.88 Inches
Width21.5 Inches
Part NumberAFB20x21.5x1M8pk4
ModelAFB20x21.5x1M8pk4

7. FilterBuy

#ad

Pleated Replacement HVAC AC Furnace Filter for Trane Perfect Fit Gold, FilterBuy 21x21.5x5 Air Filter MERV 11

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FilterBuy #ad - Merv 11 synthetic media comparable with mpr 1000-1200 & FPR 7 protects homes from pets or allergies by trapping 95% of airborne particles without impacting air flow. Compatible models: trane Perfect Fit BAYFTAH21M. Electrostatically charged, pleated 100% US made filters capture more harmful particles and last 3x longer than fiberglass models. Industrial-grade beverage board recyclable frames with dual wire backings outperform standard cardboard designs. 21x21. 5x5 replacement whole house air filters for your furnace, air conditioner, or HVAC system actual size: 20 x 21. 09 x 4. 97 inches.
BrandFilterBuy #ad
ManufacturerFilterBuy #ad
Height4.97 Inches
Length20 Inches
Weight3.75 Pounds
Width21.09 Inches
Part NumberTRF21x21.5x5M11pk1
ModelTRF21x21.5x5M11pk1

8. Filters Fast

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Filters Fast Compatible Replacement for Trane 21.5" x 21" x 5" Actual Size: 19 1/2" x 21.1" x 5" Filter BAYFTAH21M MERV 13 2-Pack

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Filters Fast #ad - Merv rating: merV 13. Dimensions: 21. 5" x 21" x 5" actual size: 19 1/2" x 21. 1" x 5". 2-pack for Added Convenience. Made in the USA! Fits many trane home comfort Air Cleaner Systems requiring a 21. 5x21x5 media.
BrandFilters Fast #ad
ManufacturerFilters Fast #ad
Part NumberBAYFTAH21M
ModelBAYFTAH21M

9. FilterBuy

#ad

FilterBuy 21x21.5x5 Air Filter MERV 13, Pleated Replacement HVAC AC Furnace Filter for Trane Perfect Fit Platinum

#ad
FilterBuy #ad - Merv 13 synthetic media comparable with mpr 1500-1900 & FPR 10 protects homes optimally by trapping 98% of airborne particles without impacting air flow. Compatible models: trane Perfect Fit BAYFTAH21M. 21x21. 5x5 replacement whole house air filters for your furnace, air conditioner, or HVAC system actual size: 20 x 21. 09 x 4. 97 inches. Industrial-grade beverage board recyclable frames with dual wire backings outperform standard cardboard designs. Electrostatically charged, pleated 100% US made filters capture more harmful particles and last 3x longer than fiberglass models.
BrandFilterBuy #ad
ManufacturerFilterBuy #ad
Height4.97 Inches
Length20 Inches
Weight3.75 Pounds
Width21.09 Inches
Part NumberTRF21x21.5x5M13pk1
ModelTRF21x21.5x5M13pk1

10. Aerostar

#ad

Aerostar 21 1/2x23 5/16x1 MERV 11 Pleated Air Filter, AC Furnace Air Filter, 4 Pack Actual Size: 21 1/2" x 23 5/16" x 3/4"

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Aerostar #ad - For best results, change your filters every 60 to 90 days but increase frequency to 30 days during peak summer and winter months.

Simple to install and a cost-effective step towards a healthier home environment. Nominal: 21-1/2 x 23-5/16 x 1, size: 21-1/2"x23-5/16"x3/4" 21 1/2x23 5/16x1, AC Furnace Air Filter. 100% synthetic electrostatic media for high efficiency with low air flow resistance. Designed to filter microscopic particles such as lint, dust, spores, pet dander, pollen, dust mites, and smoke. Comparable to mpr 1000 to 1200 micro Allergen Defense and Honeywell Allergen Plus FPR 7.
BrandAerostar #ad
ManufacturerFiltration Group #ad
Height1 Inches
Length21.5 Inches
Width23.31 Inches
Part Number21 1/2x23 5/16x1 MERV 11