The Best 13×21 5×1 air filter of 2022 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best 13×21 5×1 air filter of 2022. Check our ranking below.

2,534 Reviews Scanned

Rank No. #1

13x21 1/2x1 Carrier Replacement Filter by Aerostar - MERV 8, Box of 12

Nominal Size: 13 x 21-1/2 x 1, Actual Size: 12 7/8" x 21-1/2" x 3/4", 13x21 1/2x1, AC and Furnace Air Filter
Comparable to MPR 600 Clean Living
Comparable to Honeywell Micro Defense Plus FPR 5
Designed to filter microscopic particles such as lint, dust mites, spores, pollen, pet dander, and dust.
Change frequency 60-90 days, Made in the USA.

Rank No. #2

Filterbuy 13x21.5x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 12.88 x 21.50 x 0.75 Inches)

13x21.5x1 replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 12.88" x 21.50" x 0.75")
MERV 8 synthetic media (comparable with MPR 600 & FPR 5) protects homes from mold, pollen, and more while trapping 90% of dust particles without impacting air flow
High quality construction features an electrostatically charged design with 14 pleats per foot that captures more harmful particles and lasts 3x longer than fiberglass models (replace every 90 days for best performance)
Easy installation beverage board frames with dual wire backings improve structural integrity and outperform standard cardboard designs by resisting extreme temperatures
Industrial grade components are 100% manufactured in the United States and designed with recyclable materials

Rank No. #3

Aerostar 13x21 1/2x1 MERV 8, Pleated Air Filter, 13 x 21 1/2 x 1, Box of 4, Made in The USA

Actual Size: 12 7/8" x 21-1/2" x 3/4"
Comparable to MPR 600 Clean Living
Comparable to Honeywell Micro Defense Plus FPR 5
Designed to filter microscopic particles such as lint, dust mites, spores, pollen, pet dander, and dust.
Change frequency 60-90 days, Made in the USA.

Rank No. #4

Filterbuy 13x21.5x1 Air Filter MERV 8 Dust Defense (2-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 12.88 x 21.50 x 0.75 Inches)

13x21.5x1 replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 12.88" x 21.50" x 0.75")
MERV 8 synthetic media (comparable with MPR 600 & FPR 5) protects homes from mold, pollen, and more while trapping 90% of dust particles without impacting air flow
High quality construction features an electrostatically charged design with 14 pleats per foot that captures more harmful particles and lasts 3x longer than fiberglass models (replace every 90 days for best performance)
Easy installation beverage board frames with dual wire backings improve structural integrity and outperform standard cardboard designs by resisting extreme temperatures
Industrial grade components are 100% manufactured in the United States and designed with recyclable materials

Rank No. #5

Filterbuy 13x21.5x1 Air Filter MERV 8 Dust Defense (3-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 12.88 x 21.50 x 0.75 Inches)

13x21.5x1 replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 12.88" x 21.50" x 0.75")
MERV 8 synthetic media (comparable with MPR 600 & FPR 5) protects homes from mold, pollen, and more while trapping 90% of dust particles without impacting air flow
High quality construction features an electrostatically charged design with 14 pleats per foot that captures more harmful particles and lasts 3x longer than fiberglass models (replace every 90 days for best performance)
Easy installation beverage board frames with dual wire backings improve structural integrity and outperform standard cardboard designs by resisting extreme temperatures
Industrial grade components are 100% manufactured in the United States and designed with recyclable materials

Rank No. #6

Filter King 13x21x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 13 x 21 x .75"

FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 13" x 21" x 1" - Actual Size: 13" x 21" x .75"
MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA Establishment Number: 103501-FL-1)
MAX PERFORMANCE: Our filters can last up to 90 DAYS before needing replacement. We do recommend to change your home air filter every 30 - 90 days for 1 inch filters. This will help maintain the longevity of the intended application like A/C and heaters
CAPTURE MORE: Protect your home! The pleated design captures more particles and extends lifetime of the filter. Merv Filters trap airborne particles without impacting air flow. Feel the difference in 48 hours.
FAST & EASY INSTALLATION: Open, Slide and Close! A simple yet effective replacement air filter for your home.

Rank No. #7

Filterbuy 13x21.5x1 Air Filter MERV 8 Dust Defense (6-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 12.88 x 21.50 x 0.75 Inches)

13x21.5x1 replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 12.88" x 21.50" x 0.75")
MERV 8 synthetic media (comparable with MPR 600 & FPR 5) protects homes from mold, pollen, and more while trapping 90% of dust particles without impacting air flow
High quality construction features an electrostatically charged design with 14 pleats per foot that captures more harmful particles and lasts 3x longer than fiberglass models (replace every 90 days for best performance)
Easy installation beverage board frames with dual wire backings improve structural integrity and outperform standard cardboard designs by resisting extreme temperatures
Industrial grade components are 100% manufactured in the United States and designed with recyclable materials

Rank No. #8

Filterbuy 13x21x1 Air Filter MERV 8 Dust Defense (2-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 13.00 x 21.00 x 0.75 Inches)

13x21x1 replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 13.00" x 21.00" x 0.75")
MERV 8 synthetic media (comparable with MPR 600 & FPR 5) protects homes from mold, pollen, and more while trapping 90% of dust particles without impacting air flow
High quality construction features an electrostatically charged design with 14 pleats per foot that captures more harmful particles and lasts 3x longer than fiberglass models (replace every 90 days for best performance)
Easy installation beverage board frames with dual wire backings improve structural integrity and outperform standard cardboard designs by resisting extreme temperatures
Industrial grade components are 100% manufactured in the United States and designed with recyclable materials

Rank No. #9

Filterbuy 13x21.5x1 Air Filter MERV 8 Dust Defense (1-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 12.88 x 21.50 x 0.75 Inches)

13x21.5x1 replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 12.88" x 21.50" x 0.75")
MERV 8 synthetic media (comparable with MPR 600 & FPR 5) protects homes from mold, pollen, and more while trapping 90% of dust particles without impacting air flow
High quality construction features an electrostatically charged design with 14 pleats per foot that captures more harmful particles and lasts 3x longer than fiberglass models (replace every 90 days for best performance)
Easy installation beverage board frames with dual wire backings improve structural integrity and outperform standard cardboard designs by resisting extreme temperatures
Industrial grade components are 100% manufactured in the United States and designed with recyclable materials

Rank No. #10

Aerostar 13x21.5x1 Air Filter MERV 13 (for Allergies, Dust, Lint, Mold, Pet Dander, Smoke, Smog & Bacteria) - Electrostatic MPR 1500-1900 & FPR 10 - Pleated HVAC AC Furnace Air Filters - Pack of 6

Nominal Size: 13x21 1/2x1; Actual Size: 12 7/8" x 21 1/2" x 3/4"
Comparable to MPR 1500 to 1900 Ultimate Allergen Defense and Honeywell Allergen Elite FPR 10
Designed to filter microscopic particles such as lint, dust mites, spores, pollen, pet dander, fine dust, smoke, and bacteria.
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

Last update on 2025-05-20 / Affiliate links / Images from Amazon Product Advertising API

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Brand Value: Every brand of 13×21 5×1 air filter has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
Features: What bells and whistles matter for an 13×21 5×1 air filter?
Specifications: How powerful they are can be measured.
Product Value: This simply is how much bang for the buck you get from your 13×21 5×1 air filter.
Customer Ratings: Number ratings grade 13×21 5×1 air filter objectively.
Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their 13×21 5×1 air filter.
Product Quality: You don’t always get what you pay for with an 13×21 5×1 air filter, sometimes less, and sometimes more.
Product Reliability: How sturdy and durable an 13×21 5×1 air filter is should be an indication of how long it will work out for you.

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FAQ:

Q: What are the best air filters for your home?

A: Filtrete Basic Air Filters capture large airborne particles. Available as pleated or flat panels, these non-electrostatic home air filters capture lint and household dust. Outperforms fiberglass air filters for your furnace, air conditioner or HVAC system

Q: What type of air filter does outperform use?

A: Outperforms fiberglass air filters for your furnace, air conditioner or HVAC system Change filter at least every 90 days For optimal performance of your heating and cooling system or HVAC system

Q: What are filterbuy filters made of?

A: The frames are made of beverage board, which stays strong through humidity and temperatures of up to 200° F. Family owned and operated since 1958, FilterBuy offers a wide-variety of high quality pleated filters. All filters and components are 100% manufactured in Alabama, USA.