Description
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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).
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Standard Protection (90%)
MERV 8 Air Filters
Perfect for almost any home or business that wants great indoor air quality at a reasonable rate.
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Superior Protection (95%)
MERV 11 Air Filters
Perfect for homes or businesses accounting for factors like pets, smokers, and allergy sufferers.
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Optimal Protection (98%)
MERV 13 Air Filters
Perfect for larger homes or businesses, and those who want the best possible filtration experience.
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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.
Replacement Air Filter 20x25x4 (Actual Size: 19.50 x 24.50 x 3.63 Inches)
20x25x4 MERV 8
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20x25x4 MERV 11
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20x25x4 MERV 13
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16x20x4 MERV 8 (Popular)
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16x25x4 MERV 8 (Popular)
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20x20x4 MERV 8 (Popular)
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20x30x4 MERV 8 (Popular)
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Customer Reviews
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67,596
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19,914
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18,824
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67,596
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67,596
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67,596
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67,596
|
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Price
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$44.12 | $49.42 | $59.98 | $49.98 | $43.12 | $49.98 | $52.60 |
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Recommended Use
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Standard Filtration (2-Pack) | Superior Filtration (2-Pack) | Optimal Filtration (2-Pack) | Standard Filtration (2-Pack) | Standard Filtration (2-Pack) | Standard Filtration (2-Pack) | Standard Filtration (2-Pack) |
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Best For
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Healthy Families & Basic Needs | Allergy Sufferers & Pet Owners | Large Rooms & Medical Settings | Healthy Families & Basic Needs | Healthy Families & Basic Needs | Healthy Families & Basic Needs | Healthy Families & Basic Needs |
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Filtration Effectiveness
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90% Airborne Particles | 95% Airborne Particles | 98% Airborne Particles | 90% Airborne Particles | 90% Airborne Particles | 90% Airborne Particles | 90% Airborne Particles |
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Comparable Ratings
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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 |
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Pleat Count
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8 – 14 Pleats / Foot | 8 – 14 Pleats / Foot | 12 – 16 Pleats / Foot | 8 – 14 Pleats / Foot | 8 – 14 Pleats / Foot | 8 – 14 Pleats / Foot | 8 – 14 Pleats / Foot |
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Particle Size
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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) |
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Dust & Debris
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✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
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Mold & Pollen
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✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
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Lint & Dander
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✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
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Smog & Smoke
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✘ | ✔ | ✔ | ✘ | ✘ | ✘ | ✘ |
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Bacteria
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✘ | ✘ | ✔ | ✘ | ✘ | ✘ | ✘ |
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Odors
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✘ | ✘ | ✘ | ✘ | ✘ | ✘ | ✘ |
Choosing the Correct Filter Size
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 filter’s precise dimensions (ex: 15.50 x 19.50 x 0.75). All filters have both.
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.
About Us
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Finding the Perfect Fit
No matter the size, we’ve 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.
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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.
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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.
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Subscribe and Save
Don’t 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.
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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.
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