Best 5 Air Conditioner Replacement Filters in 2026

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 particles such as lint, pollen, dust, pet dander, smoke and smog

BUY WITH CONFIDENCE This genuine AprilAire 213 replacement air filter was designed and manufactured in the USA by AprilAire – the leader in indoor air quality solutions – to optimize the performance of your AprilAire Air Purifier Model: 1210, 1620, 2120, 2200, 2210, 2216, 3210, 4200, or Space-Gard 2200 with Upgrade Kit 1213

CREATE A HEALTHIER HOME by preventing airborne allergens from circulating through the air in your home. This AprilAire 213 replacement air filter traps common allergy triggers as they pass through the MERV 13 filter including dust, pollen, mold spores, bacteria, pet dander, and dust mites.

BETTER PERFORMANCE thanks to the patented AprilAire Self-Seal Technology which minimizes the amount of air bypassing the 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 90 days for 1 in. filters

A dirty filter will slow down air flow and make the system work harder to keep you warm or cool--wasting energy.

Nominal size: 20x25x4; Actual size: 19 1/2"x24 1/2"x3 3/4"; 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. Replace 3"-5" filters every 3-6 months.

Nominal size: 19 7/8 x 21 1/2x1; Actual size: 19 7/8"x21 1/2"x3/4"; This MERV 13 filter is comparable with MPR 1500-1900 & FPR 10

Designed to filter microscopic particles such as lint, dust mites, spores, pollen, pet dander, fine dust, smoke, viruses, 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

18x30x1 replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 17.75" x 29.75" x 0.75")

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

12x12x1 MERV 13 air filter replacement for your air conditioner, furnace or HVAC system. Actual Size: 11 3/4’’ x 11 3/4’’ x 3/4‘’. Comparable with MPR 1500-1900 & FPR 10. Provides optimal defense with electrostatically charged filter media and superior low air flow resistance. Based on ASHRAE Standard 52.2-2017 Initial Efficiency / Resistance.

MADE IN USA, SUSTAINABLY - Proudly manufactured by BNX Converting, LLC in Houston, TX, a registered and approved facility (EPA Registration # 101638-TX-1). Adopts double sided (two-piece) frame technology and made sustainably from recycled cardboard.

SUPERIOR PERFORMANCE - The BNX MERV 13 air filter media outperforms standard fiberglass filters and adopts the latest in electrostatic filtration technology to capture maximum pollen, mold bacteria, smoke, carriers & other microscopic particles while maintaining industry leading superior low air flow resistance.

Actual Size: 19 1/8 inches (length) x 19 7/8 inches (width) x 4 1/4 inches (depth)

Effective Filtration: MERV 8 synthetic media (comparable with MPR 600 & FPR 5) protects homes from dust, lint, debris, mold, pollen, pet dander, and dust mites

High-Quality Contruction: Features an electrostatically charged, pleated design that captures more particles and prolongs the products lifespan by 3 times that of fiberglass models

New MERV 10 (at 492 FPM) performance with lower pressure drop at no additional cost!

Efficiency ratings are based on American Society of Heating, Refrigerating and Air-Conditioning Engineers Standard 52.2 1999!

Efficiency ranges are defined for small particles, E1=0.3 to 1.0 microns; medium particles, E2=1.0 to 3.0 microns; and large particles, E3=3.0 to 10.0 microns

【A PERFECT, PINK, PET-FRIENDLY AIR FILTER - MADE IN THE USA】Pets are awesome, but let's be completely honest here--they don’t do us any favors when it comes to air quality. High-efficiency, dynamic air conditioner filters by Colorfil were designed specifically to help you enjoy the happiest moments with your pets, with none of the odors.

【NASA-GRADE FILTRATION AT YOUR FINGERTIPS】That’s one small step for man, and one giant leap for home filtration! Colorfil’s 16x20x1 air filter technology was originally built to protect astronauts and spacecraft from nasty gases and odors. You could say we’re the only air filter company that is literally “out of this world.”

【COLOR-SHIFT TECHNOLOGY, A BAD SCENT’S WORST ENEMY】Colorfil’s remarkable home air filter acts as the most feared and respected bouncer at a club – it lets in the good, and keeps out the bad. Whether it's dust, dirt or that pesky pet hair your four-legged friends leave behind, we filter it all to keep you and your loved ones healthy and happy.

【20x30x1’’ AIR FILTERS】Actual size of the furnace filter is 19.75 x 29.75 x 0.75”; Sold in Packs of 6; This MERV 13 filter is comparable with MPR 1500-1900 & FPR 10

【HIGH EFFICIENCY FILTRATION】MERV 13 air filters will capture 98% of household airborne particles sized 0.3 to 1 microns and help filter out dust & lint, dust mites, pet dander, smoke, smog, auto exhaust, coughs and sneezes, bacteria without reducing air flow; MERV 13 filters are most commonly used in pharmacies, surgical facilities, and smoking lounges

【IMPROVE INDOOR AIR QUALITY】Efficient HVAC filters provide cleaner, healthier, and fresher air for all inhabitants; Timely filter replacement helps prolong service life of your heating and cooling system and can reduce your energy bill

Quality alternative to the OEM filter that offers more affordability without compromising filtration performance or efficiency.

Compatible with Honeywell / Trane / American Standard TRN2621T1, BAYFTAH26M, BAYFTAH26M2, and FLR06074 whole house air filters.

21x26x5 NOMINAL: The actual size of this replacement filter is 25.7" x 20.1" x 5".

MERV 13 AIR FILTER 16x28x6 – Filters Fast Air Filters meet the same quality standards as the name brand filters and we back our 16x28x6 filter with a MERV RATING 13. We are a member of NAFA, The National Air Filter Association. Be wary of cheap filters.

COMPATIBLE WITH – These 16x28x6 air filters MERV 13 are the compatible replacements for Aprilaire SpaceGard 401, compatible replacement for Spacegard Aprilaire 2400 Air Cleaner System.

ENHANCE THE AIR QUALITY IN YOUR HOME – The premium MERV 13 rating Filters Fast filters will help with overall air quality while also helping to extend the life of your heating and cooling system.

HQRP® 2-pack Replacement Foam Filter;

Fits any window A/C unit or other filter systems up to 24 X 15 inch; Easy cut foam down to any size;

1/4 inch thick, keeps all dirt and dust out; Helps to remove dust and other contaminants from the air;

MERV 8 filter captures common allergens for fresher, cleaner air. As Tested per ASHRAE 52.2 MERV testing. This filter does not claim to remove or reduce any living allerge

Captures common allergens such as pollen, dust, lint and more

High-performance pleated design and dual wire backing

Excellent Filtration – Our EconoHome air filters will help you breathe cleaner air indoors. This MERV 11 16x25x4 furnace filters helps catch most airborne particles (lint, fine dust, pet dander, smoke, and more) without impacting the airflow in your home.

Dimensions – This furnace filter actual size: 15-15/16"x24-7/8"x4-3/8

Quick & Easy Installation - Switch off the AC system, remove the old AC air filter, and then slide the new air conditioner filter into place. Please make sure that the arrows match the direction of your system's airflow

Actual Size: 20 inches (length) x 25 1/2 inches (width) x 4 3/8 inches (depth)

Effective Filtration: MERV 11 synthetic media (comparable with MPR 1000 - 1200 & FPR 7) protects homes from pets, allergies, and more

High-Quality Contruction: Features an electrostatically charged, pleated design that captures more particles and prolongs the products lifespan by 3 times that of fiberglass models

14x20x1 MERV 11 air filter replacement for your air conditioner, furnace or HVAC system. Actual Size: 13 11/16’’ x 19 11/16’’ x 3/4‘’. Comparable with MPR 1000 & FPR 7. Electrostatically charged filter media with industry leading low air flow resistance.

MADE IN USA, SUSTAINABLY - Proudly manufactured by BNX Converting, LLC in Houston, TX, a registered and approved facility (EPA Registration # 101638-TX-1). Adopts single sided (one-piece) frame technology to reduce environmental waste and made sustainably from recycled cardboard.

SUPERIOR PERFORMANCE - The BNX MERV 11 100% synthetic electrostatically charged air filter media outperforms standard fiberglass filters and adopts the latest in electrostatic filtration technology to allow for industry leading superior low air flow resistance while maintaining the highest grade level of filtration.

1. Washable & Reusable: Designed to be washable and reusable for multiple times without reducing the effect, lower your replacement cost significantly.

2. Advanced & Filtration: To use an Original Life Washable Filter, you do not need to install the original filter and plastic frame. Original Life Washable Filter is made of elastic material and has no frame design. As long as the filter covers the air inlet or outlet, there is a filtering effect.

3. Strong & Durable: Designed with 3D conical weaving fiber structure. Made of PP material.