Best 13 X 21.5 Air Filter in 2022 [*Top Picks*]

Looking for the best 13 x 21.5 air filter on the market? We’ve got you covered. Check out our ratings of absolute bestsellers below and make a final decision.

5172 Reviews Scanned

  • Filterbuy 13x21.5x1 Air Filter MERV 8, Pleated HVAC AC Furnace Filters (2-Pack, Silver)
    Bestseller #1
    Filterbuy 13x21.5x1 Air Filter MERV 8, Pleated HVAC AC Furnace Filters (2-Pack, Silver) (13462)
      13x21.5x1 replacement air filters for your furnace, air conditioner, or HVAC system (actual size: 12.88 x 21.50 x 0.75 inches) 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 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
  • Filterbuy 13x21.5x1 Air Filter MERV 8, Pleated HVAC AC Furnace Filters (4-Pack, Silver)
    Bestseller #1
    Filterbuy 13x21.5x1 Air Filter MERV 8, Pleated HVAC AC Furnace Filters (4-Pack, Silver) (13462)
      13x21.5x1 replacement air filters for your furnace, air conditioner, or HVAC system (actual size: 12.88 x 21.50 x 0.75 inches) 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 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
  • Aerostar 13x21 1/2x1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 12 7/8
    Bestseller #1
    Aerostar 13x21 1/2x1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 12 7/8" x 21 1/2" x 3/4") (662)
      Nominal Size: 13 x 21-1/2 x 1; Actual Size: 12 7/8"x21-1/2"x3/4" Comparable to MPR 600 Clean Living and Honeywell Micro Defense Plus 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. For best results, change your filters every 60 to 90 days but increase frequency to 30 days during peak summer and winter months 100% synthetic electrostatic media for high efficiency with low air flow resistance. Manufactured in the USA by Filtration Group, a world-leading manufacturer and supplier of filtration solutions making the world safer, healthier & more productive
  • Filterbuy 13x21.5x1 Air Filter MERV 13, Pleated HVAC AC Furnace Filters (2-Pack, Platinum)
    Bestseller #1
    Filterbuy 13x21.5x1 Air Filter MERV 13, Pleated HVAC AC Furnace Filters (2-Pack, Platinum) (13462)
      13x21.5x1 replacement air filters for your furnace, air conditioner, or HVAC system (actual size: 12.88 x 21.50 x 0.75 inches) MERV 13 synthetic media (comparable with MPR 1500-1900 & FPR 10) protects homes optimally by trapping 98% 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
  • Filterbuy 13x21.5x1 Air Filter MERV 11, Pleated HVAC AC Furnace Filters (2-Pack, Gold)
    Bestseller #1
    Filterbuy 13x21.5x1 Air Filter MERV 11, Pleated HVAC AC Furnace Filters (2-Pack, Gold) (13462)
      13x21.5x1 replacement air filters for your furnace, air conditioner, or HVAC system (actual size: 12.88 x 21.50 x 0.75 inches) 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 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
  • Filterbuy 13x21.5x1 Air Filter MERV 11, Pleated HVAC AC Furnace Filters (4-Pack, Gold)
    Bestseller #1
    Filterbuy 13x21.5x1 Air Filter MERV 11, Pleated HVAC AC Furnace Filters (4-Pack, Gold) (13462)
      13x21.5x1 replacement air filters for your furnace, air conditioner, or HVAC system (actual size: 12.88 x 21.50 x 0.75 inches) 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 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
  • Filterbuy 13x21.5x1 Air Filter MERV 8, Pleated HVAC AC Furnace Filters (6-Pack, Silver)
    Bestseller #1
    Filterbuy 13x21.5x1 Air Filter MERV 8, Pleated HVAC AC Furnace Filters (6-Pack, Silver) (13462)
      13x21.5x1 replacement air filters for your furnace, air conditioner, or HVAC system (actual size: 12.88 x 21.50 x 0.75 inches) 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 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
  • Filterbuy 13x21.5x1 Air Filter MERV 8, Pleated HVAC AC Furnace Filters (3-Pack, Silver)
    Bestseller #1
    Filterbuy 13x21.5x1 Air Filter MERV 8, Pleated HVAC AC Furnace Filters (3-Pack, Silver) (13462)
      13x21.5x1 replacement air filters for your furnace, air conditioner, or HVAC system (actual size: 12.88 x 21.50 x 0.75 inches) 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 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
  • Filterbuy 13x21.5x1 Air Filter MERV 13, Pleated HVAC AC Furnace Filters (4-Pack, Platinum)
    Bestseller #1
    Filterbuy 13x21.5x1 Air Filter MERV 13, Pleated HVAC AC Furnace Filters (4-Pack, Platinum) (13462)
      13x21.5x1 replacement air filters for your furnace, air conditioner, or HVAC system (actual size: 12.88 x 21.50 x 0.75 inches) MERV 13 synthetic media (comparable with MPR 1500-1900 & FPR 10) protects homes optimally by trapping 98% 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
  • Filterbuy 20x21.5x1 Air Filter MERV 13, Pleated HVAC AC Furnace Filters (4-Pack, Platinum)
    Bestseller #1
    Filterbuy 20x21.5x1 Air Filter MERV 13, Pleated HVAC AC Furnace Filters (4-Pack, Platinum) (13462)
      20x21.5x1 replacement air filters for your furnace, air conditioner, or HVAC system (actual size: 19.88 x 21.50 x 0.75 inches) MERV 13 synthetic media (comparable with MPR 1500-1900 & FPR 10) protects homes optimally by trapping 98% 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
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