Feature

●12x24x1 replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 11.50" x 23.50" 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
●Electrostatically charged, pleated filters capture more harmful particles, last 3x longer than fiberglass models, and are 100% manufactured within the United States
●Industrial grade beverage board (recyclable) frames with dual wire backings improve structural integrity and outperform standard cardboard designs
●If you receive items with a different label, frame, or media than what is pictured, please note that any such alteration is purely cosmetic and your filter will still function exactly as described

Description

Measurement System

Minimum Efficiency Reporting Value (MERV)

Rates the ability of filters to trap particles on a scale of 1-20 (smallest microns captured at 20).
Standard Protection (90%)

MERV 8 Air Filters

Perfect for almost any home or business that wants great indoor air quality at a reasonable rate.
Superior Protection (95%)

MERV 11 Air Filters

Perfect for homes or businesses accounting for factors like pets, smokers, and allergy sufferers.
Optimal Protection (98%)

MERV 13 Air Filters

Perfect for larger homes or businesses, and those who want the best possible filtration experience.
Odor Eliminator (90%)

MERV 8 Air Filters with Activated Carbon

Perfect for homes or businesses that want to inhibit unpleasant smells with reliable MERV 8 quality.

1 What is a MERV Rating? 2 MERV 8 3 MERV 11 4 MERV 13 5 Odor Eliminator

Replacement Air Filter 12x24x1 (Actual Size: 11.50 x 23.50 x 0.75 Inches)

	12x24x1 MERV 8	12x24x1 MERV 11	12x24x1 MERV 13	12x24x1 MERV 8 + Carbon	16x25x1 MERV 8 (Popular)	20x20x1 MERV 8 (Popular)	20x25x1 MERV 8 (Popular)
Customer Reviews	5,237	634	486	109	12,135	13,616	8,206
Price	$27.99	$39.40	$44.16	$57.40	$27.92	$28.00	$31.79
Recommended Use	Standard Filtration (4-Pack)	Superior Filtration (4-Pack)	Optimal Filtration (4-Pack)	Odor Elimination (4-Pack)	Standard Filtration (4-Pack)	Standard Filtration (4-Pack)	Standard Filtration (4-Pack)
Best For	Healthy Families & Basic Needs	Allergy Sufferers & Pet Owners	Large Rooms & Medical Settings	Household Odors & Basic Needs	Healthy Families & Basic Needs	Healthy Families & Basic Needs	Healthy Families & Basic Needs
Filtration Effectiveness	90% Airborne Particles	95% Airborne Particles	98% Airborne Particles	90% Airborne Particles	90% Airborne Particles	90% Airborne Particles	90% Airborne Particles
Comparable Ratings	MPR 600 & FPR 5	MPR 1000 - 1200 & FPR 7	MPR 1500 - 1900 & FPR 10	MPR 600 & FPR 5	MPR 600 & FPR 5	MPR 600 & FPR 5	MPR 600 & FPR 5
Pleat Count	8 - 14 Pleats / Foot	8 - 14 Pleats / Foot	12 - 16 Pleats / Foot	12 - 16 Pleats / Foot	8 - 14 Pleats / Foot	8 - 14 Pleats / Foot	8 - 14 Pleats / Foot
Particle Size	3 - 10 Microns (µm)	1 - 3 Microns (µm)	0.3 - 1 Microns (µm)	3 - 10 Microns (µm)	3 - 10 Microns (µm)	3 - 10 Microns (µm)	3 - 10 Microns (µm)
Dust & Debris	✔	✔	✔	✔	✔	✔	✔
Mold & Pollen	✔	✔	✔	✔	✔	✔	✔
Lint & Dander	✔	✔	✔	✔	✔	✔	✔
Smog & Smoke	✘	✔	✔	✔	✘	✘	✘
Bacteria	✘	✘	✔	✘	✘	✘	✘
Odors	✘	✘	✘	✔	✘	✘	✘

anatomy of an air filter showing green framed filterbuy filter with features like pleats and wiring

Choosing the Correct Filter Size

stack of green frame 16x20x1 filters showing nominal and actual size being organized by employee

Nominal Size vs. Actual Size

The nominal size is a shorthand number rounded to the nearest whole or half inch, normally in a larger font (ex: 16 x 20 x 1). Whereas the actual size is an exact measurement, normally in a smaller font, that depicts the filters precise dimensions (ex: 15.50 x 19.50 x 0.75). All filters have both.

air filter with the length width and depth identified next to a green measuring tape

Measuring Your Air Filter

If your current air filter does not have a dimension listed on the frame, use a tape measure to record the width x length x depth to find the actual size. Then round these measurements up to the nearest inch to find a corresponding nominal size, which will be easier to locate when searching online.

Why should I change my air filter?

To maintain a healthy lifestyle, as breathing dirty air can put you at risk to develop asthma, allergies, and other respiratory ailments. Plus, old filters can cause system defects which may lead to unwanted expenses via energy costs and repairs.

When should I change my air filter?

We generally recommend replacing your filter every 90 days to keep your system running efficiently and air clean. But this is subject to change based on filter size and variable factors for pet owners, allergy sufferers, homes with children, etc.

Will these air filters fit my system?

Most of our filters are universally compatible and will work with any furnace, air conditioner, heat pump, or HVAC system as long as you choose the proper size. But if you see a specific brand name on a listing, make sure it matches your unit model.

How many air filters do I need?

This varies for every customer depending on specific needs such as the number of vents in your home. However, our selection includes package quantities that range from 1 to 12 filters, so no matter what your situation may be, weve got you covered.

How do I change my air filter?

After finding the right size, turn off the power supply and remove the cover from your intake vent before taking out the old filter. Then just insert your new filter to match the direction of air flow, replace the cover, and turn the power back on.

About Us

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Better Air For All

Championing indoor air quality

At Filterbuy, we care about the air you breathe because we consider it the foundation for maintaining a healthy lifestyle. Cleaner air is always better, and we are firm believers that everyone, everywhere deserves to breathe it. This is why we work around the clock to ensure that you, your family, and your community have access to clean indoor air, free of allergens and pollutants, that enables you to routinely live free and breathe freely.
Finding the Perfect Fit

No matter the size, weve got you covered

We now offer a variety of expert services and hundreds of custom air filter sizes that are compatible with a near infinite number of systems, because we know that when it comes to clean air, there isn’t a one size fits all solution. This enables us to always provide value with a quality product that empowers you to protect your home or business, regardless of your filtration needs.
Green Means Clean

Refreshing new look, same great quality

Our new, green frames are constructed with the same high quality materials that you have grown accustomed to. We made the decision to switch to this greener design to help symbolize the peace of mind that comes from knowing your home or business is being properly cared for. When you see Filterbuy green, you can exhale with the confidence that you are breathing crisp, pure, fresh air.
100% American Made

Local sourcing and manufacturing

From our first air filter produced in 2013, we have proudly built our business in the USA, now manufacturing in Alabama, California, Florida, Illinois, North Carolina, Pennsylvania, Texas, and Utah. This robust, homegrown network gives us the unique ability to swiftly fulfill diverse, custom orders directly to the doors of households and businesses across the country at premium rates.
Subscribe and Save

Dont let changing your filter be a burden

The nature of air filters requires them be replaced regularly, but opting into a subscription service can help to simplify that process. All you need to do is find the right product and choose the delivery interval. We do the rest by making sure your filters arrive on time as requested. The majority of our Amazon catalog is already eligible for the program, and you even get a discount on every delivery when you enroll, making it an easy choice.
Where We Came From

Nearly 70 years of giving back

Our small, family-owned and operated company has evolved since its inception in 1958 to the filtration business that you know and love today with thousands of employees serving millions of customers. As our team continues to expand to new neighborhoods across the country, we make sure to stay true to our values by keeping our commitment to community investment and personal aid at every possible opportunity.