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Actual Size: 20x22.25x1"

3 month filters
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Made in the USA
Ships in 24 hours
Available In MERV Rating: 8, 13, 11
Made in the USA
Ships in 24 hours
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MERV 8 | MERV 11 | MERV 13 | |
|---|---|---|---|
| Best for | Standard Residential/Commercial Healthy Families | Superior Residential/Commercial Allergy Sufferers | Optimal Residential/Commercial Hospital Grade |
| Comparable ratings | MPR 600 & FPR 5 | MPR 1000-1200 & FPR 7 | MPR 1500 - 1900 & FPR 10 |
| Filtration | Captures 90% of Airborne Particles | Captures 95% of Airborne Particles | Captures 98% of Airborne Particles |
| Dust, lint & debris | |||
| Mold, pollen | |||
| Dander, dust mites | |||
| Smoke & Smog | |||
| Bacteria | |||
| Odor, vocs |
Generally, we recommend you replace your air filters every 90 days. Find out below if you should change your filters more often.

Change your filter every
6 weeks
to ensure indoor air quality is at its best.

Change your filter every
2 months
to avoid shedding and odor buildup.

Change your filter every
2-3 months
as having clean air is even more important with children in your home.

Change your filter every
6 weeks
to ensure indoor air quality is at its best.

Change your filter every
2 months
to avoid shedding and odor buildup.

Change your filter every
2-3 months
as having clean air is even more important with children in your home.
At Filterbuy.com, we’ve manufactured and shipped millions of custom and standard-size filters, and this uncommon size is one we know inside and out. Based on years of hands-on experience and direct customer feedback, we’ve engineered our 20x22.25x1 filters to deliver a precise fit, long-lasting filtration, and HVAC system protection you can trust. Unlike generic big-box alternatives, our filters are made-to-order in our U.S.-based facilities, ensuring peak performance, cleaner air, and fast delivery — without the guesswork.
Improve Efficiency: To make the HVAC system 15% more efficient, change your filter. Old filter directly affects the performance of the AC system and can lead to high energy consumption and component wear and tear.
Breath Easier: You can get rid of more than 99% of the pollutants if you use a filter that has a high MERV rating, thus eliminating indoor air quality problems.
Just the Right Size: The dimensions of our 20x22.25x1 filtration materials perfectly fit the system and promise the highest possible efficiency.
It is of great importance to maintain the air cleanliness of the house and to keep the HVAC system in good condition by selecting the proper filter. The 20x22.25x1 sizes are general sizes available for the replacement of various HVAC and furnace systems, but it can be a hard task to find the right one. That's where Filterbuy outperforms others.
At Filterbuy, we are experts in producing the ideal filters for your system, which are sure to positively impact performance by making the indoor air stay clean and healthy. Our 20x22.25x1 filters have been shaped carefully and are therefore individually made to fulfill the specific needs of the clients and are additionally to be found in the United States. The use of top-quality materials and a perfect fit is guaranteed by this method. The main point, when it comes to our filters, is that they are not the typical commercial ones, which may not function well due to high volume, but are the custom-made ones with a longer life span, better efficiency, cleanliness, and system protection.
We comprehend the matter of air quality, and indeed, that is the reason our filters come with a variety of MERV ratings that can be catered to your specific demands. Whether you are just in need of a basic filter or require higher performance for adequate allergen and fine particle elimination, we offer all the options for you to select from. The user-friendly filter selector of ours will guide you through all available options according to the conditions in your household and the way you live.
The process of ordering your filter (size 20x22.25x1) from Filterbuy takes seconds, and the delivery is on the same day. You need to select the shipment directly from us to always have a punctual arrival of your filter, and as good as it gets, that is what we are constantly doing for you through the head office of the company. User-friendly, Gold-Star Rated customer service agents are at your disposal for any questions since they can provide you with the best possible solution most efficiently, which in turn leads to customer satisfaction and repeat business.
Filterbuy has gone a step further from just selling premium air filters; by choosing our products, you become a vital part of a sustainability program. The majority of our filters are created with recycled components, and our eco-friendly procedures help reduce waste at the same time as they keep the quality of the products in high regard.
When you buy from Filterbuy, you can have the best of both worlds: getting top-value products at the best prices. We offer filters that are not only competitively priced but also do not have hidden fees or added middleman costs. It has never been so simple to keep your home’s air clean without spending more than necessary.
Selecting a right 20x22.25x1 HVAC or furnace air filter is the first and most important factor to ensure that both your system and home environment are maintained. With Filterbuy, you not only receive a perfect fit but also get fine filtration and good airflow without any hassle — all at a reasonable price. Check our products and you will feel the difference right away.

"After manufacturing and shipping millions of custom filters, we’ve learned that the key to optimal HVAC performance and cleaner air is a precise fit, superior materials, and thoughtful design. With our 20x22.25x1 filters, we combine decades of expertise with direct customer feedback to provide a product that consistently outperforms generic alternatives. It's not just about replacing a filter — it's about improving your home’s air quality and protecting your system for the long haul."
To help illustrate the importance of choosing high-quality air filters like Filterbuy’s 20x22.25x1 models, here are some key statistics from trusted organizations:
According to the U.S. Environmental Protection Agency (EPA), indoor air can be 2 to 5 times more polluted than outdoor air, and in some cases, as much as 100 times more polluted. This makes air filtration a critical component of home health.
Source: EPA Indoor Air Quality
The Centers for Disease Control and Prevention (CDC) reports that exposure to indoor pollutants like dust, pollen, and mold spores can aggravate respiratory conditions such as asthma and allergies, especially in children and the elderly.
Source: CDC - Asthma and Indoor Air Quality
The Department of Energy (DOE) notes that replacing a dirty, clogged filter with a clean one can lower your air conditioner’s energy consumption by 5% to 15%, extending system life and reducing utility costs.
Source: Energy.gov - Air Conditioner Maintenance
Filterbuy, the right air filter is for us, not just a replacement but an investment in your HVAC system and home health, has been our creed for many days. This is why:
Energy-efficient System: Our 20x22.25x1 filters can be the perfect option for you in that they can increase the efficiency of your HVAC by as much as 15%, which in turn means lower energy bills and a longer system life.
Cleaner Air: The highest quality air filters are responsible for eliminating harmful particles, which, in turn, makes the air that your family breathes much cleaner and hence, it greatly helps in the case of allergic and asthma symptoms.
Sound Investment: The use of a high-end filter not only saves the system from over-tension but also reduces maintenance costs.
After having served the field for a long time, we have witnessed the results of adopting a suitable filter. Despite that fact, numerous homeowners go for low-quality options, while a MERV-rated filter can offer a visible difference in terms of performance, air quality, and even savings. The performance is better and the air quality is getting better and better as well and the maintenance costs are getting lower and lower than we could have hoped for. After this experience, the only thing you should do is to
Change your mind to become a user of Filterbuy and in a quick time, both the comfort and the worth of your property will become visible.
1. Choose the Right Size
Use our size guide to find the correct filter.
20x22.25x1 filters fit many standard HVAC systems.
2. Order Online
Go to Filterbuy.com and place your order.
Enjoy fast, free shipping directly to your door.
3. Install Your New Filter
Follow the easy installation instructions included with your filter.
4. Set Up Automatic Replacements
Sign up for Filterbuy’s automatic filter replacement program to never miss a change.
5. Enjoy the Benefits
Experience better air quality, lower energy bills, and improved HVAC performance.
Start today and improve your home's comfort and air quality with Filterbuy!
This measurement refers to the length, width, and thickness of the filter in inches. It's important to match your filter size exactly to ensure a proper fit and optimal airflow in your HVAC or furnace system.
Generally, it’s recommended to replace your air filter every 1 to 3 months, depending on factors like air quality, household pets, allergies, and usage. Inspect the filter regularly and replace it when it looks dirty or clogged.
For most homes, a MERV rating between 8 and 13 provides a good balance of filtration efficiency and airflow. MERV 13 captures finer particles, ideal for households with allergies, while MERV 8 is suitable for basic dust and pollen control.
Yes, there are washable and electrostatic reusable air filters in this size. These can be rinsed and reused multiple times, offering long-term cost savings, although they may not filter as efficiently as high-MERV disposable options.
You can purchase these filters online or in-store at major retailers like Ebay, Walmart, Amazon, and HVAC specialty shops. Buying in bulk online often provides better value and convenient delivery options.