Filterbuy 20x20x1 Air Filter MERV 8 Essential Dust & Allergy Defense (4-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 19.50 x 19.50 x 0.75)
$29.96
Related Products
Product 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 20x20x1 (Actual Size: 19.50 x 19.50 x 0.75 Inches)
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Customer Reviews
4.7 out of 5 stars 153,209
4.6 out of 5 stars 22,695
4.6 out of 5 stars 21,371
4.6 out of 5 stars 4,523
4.7 out of 5 stars 153,209
4.7 out of 5 stars 153,209
4.7 out of 5 stars 153,209
Price
$29.96$29.96
$39.96$39.96
$44.96$44.96
$63.28$63.28
$31.96$31.96
$32.48$32.48
$36.92$36.92
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
✘
✘
✘
✔
✘
✘
✘
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.
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, we’ve 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
The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.
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, 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.
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 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.
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.
UNIVERSAL COMPATIBILITY: 20x20x1 replacement air filters for your furnace, air conditioner, or heat pump enhance HVAC system efficiency and support a healthy lifestyle (actual size: 19.50″ x 19.50″ x 0.75″)
MERV 8 PERFORMANCE: Protect your home or business from pollen, lint, mold, and more with MERV 8 synthetic media (comparable with MPR 700 & FPR 5) that captures 90% of dust without restricting air flow
LASTING FILTRATION: Electrostatically charged media with 14 pleats per foot traps more microscopic particles and lasts 3x longer than fiberglass models (replace every 90 days for best results)
SUPERIOR CONSTRUCTION: Easy installation beverage board frames with dual wire backing outperform basic cardboard designs by improving durability and resisting extreme temperatures
MADE IN THE USA: Built with industrial-grade, recyclable materials and proudly manufactured 100% in the United States for dependable indoor air quality you can trust
13 reviews for Filterbuy 20x20x1 Air Filter MERV 8 Essential Dust & Allergy Defense (4-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 19.50 x 19.50 x 0.75)
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$29.96
@MindfulMamaLife –
Great Quality Air Filter – Perfect Fit!
I’m very impressed with the Filterbuy 18x30x1 MERV 8 filter. It fit my system perfectly and was easy to install. The frame feels sturdy, and the pleats are well-made compared to cheaper filters I’ve tried. Within a few days, I noticed less dust around the house, and the air feels fresher overall.I like that it balances filtration with good airflow, so my HVAC doesn’t struggle. It’s also a great value since it lasts a solid 3 months before needing replacement. If you’re looking for a reliable, high-quality filter at a fair price, this is definitely one I recommend.
Richard –
Love them
I’ve been using these air conditioning filters for a while now, and I’m really impressed. They fit perfectly in my system and were super easy to install. Since switching to these filters, I’ve noticed the air in my home feels cleaner and fresher. The quality is excellent—they feel sturdy and well-made, and they last longer than I expected. It’s great knowing my AC is running efficiently and my home’s air is cleaner at the same time. Overall, I’m very happy with these filters and would definitely recommend them to anyone looking for a reliable, high-quality option.
Vicki Gray –
Great Value,
Perfect fit, improved the dust in my home.very good quality, will order again.
Rose S –
Excellent but size is off.
These are the best in terms of having the cardboard and wires running throughout the fabric to hold them in place. Also the criss-cross cardboard may help with holding the fabric in also.I still secure the fabric to my grate with twist ties or pipe cleaners in case it comes loose and the fabric gets pulled into the ducts.I had that happen with another brand.These filters seem sturdier and hold together better.The reason for one star off is the sizes are not as indicated. They are not an inch thick and the 14×30 was a little to wide and long to fit my system. Others just slide in…still I would rather have a slightly larger than slightly smaller filter.
Jacob –
Wonderful Filter
These filters are amazing. They get the job done perfectly. They filter good and they are great for the air flow. They also fit my unit perfectly and are bit strongly. They do not bend at all so there are no spots for the air to sneak around the filter.
Adam G. –
Balanced Filter
After some internet research I found these as a balanced filter between cost, quality, and MERV. They seem solid for the MERV rating and cost, only complaint is they came a bit crushed from shipping so I had to bend them back into shape before use, but that isn’t the products fault. I will typically change my filter monthly and the attached photos are from when I installed one mid September and replaced Nov 1st, sitting next to a new replacement.
Elizabeth –
Fantastic Filter
We left ours in 3 months and it did amazing! Look at that dirt! We’ve got our filter in a high traffic area with lots of pets and dirt and the filter caught an amazing amount. Great purchase and amazing price point for this quality.
tara speece –
High-Quality Air Filters – Keep Your Home Clean and Fresh! 🌬️🏡
I purchased this 4-pack of Filterbuy 20x20x1 MERV 8 air filters for my HVAC system, and they’ve exceeded my expectations. The filters fit perfectly in my units and are easy to install. The electrostatic pleated design does a great job of trapping dust, allergens, and pet dander, making the air in my home noticeably cleaner.The quality feels solid, and the pleats hold up well even after several weeks of use. I appreciate that these filters are made in the USA and designed to provide consistent airflow while still capturing particles effectively. Having a 4-pack on hand is convenient for regular replacement, which helps maintain optimal performance of my HVAC system.Reliable, effective, and high-quality air filters. Great choice for anyone looking to improve indoor air quality!
Glenn Goring –
Item was on-time and as advertised. Excellent service and quality.
Retired –
Great price and good quality
Janet VanderMeulen –
Arrived before delivery date and work great for keeping dust down.
Philippe Leblond –
Clean, easy to install
Andrew Ludwig –
Will buy more when needed