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Actual Size: 13 3/8" x 23 3/8" x 3/4"

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Made in the USA
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Available In MERV Rating: 8, 11, 13, Odor Eliminator
Made in the USA
Ships in 24 hours
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MERV 8 | MERV 11 | MERV 13 | Odor Eliminator | |
|---|---|---|---|---|
| Best for | Standard Residential/Commercial Healthy Families | Superior Residential/Commercial Allergy Sufferers | Optimal Residential/Commercial Hospital Grade | ODOR ELIMINATOR Residential/Commercial Household Odors |
| Comparable ratings | MPR 600 & FPR 5 | MPR 1000-1200 & FPR 7 | MPR 1500 - 1900 & FPR 10 | MPR 1000-1200 & FPR 7 |
| Filtration | Captures 90% of Airborne Particles | Captures 95% of Airborne Particles | Captures 98% of Airborne Particles | Captures 95% 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.
The air inside your home could be more polluted than outside. Advanced air filters can help with this. They’re designed to eliminate tiny particles and allergens. They last much longer than standard filters.
Consider the benefits for your health, comfort, and even energy savings. What’s the secret behind these high-tech air filters? Get ready for some surprising answers!
A 14x24x1 air filter is a standard-size pleated HVAC filter with an actual size of 13⅜" x 23⅜" x ¾" designed to capture airborne pollutants circulating through your home's heating and cooling system.
Key specifications:
Replacement frequency: Every 90 days (60 days with pets or allergies)
Compatibility: Fits standard residential furnaces, air conditioners, and HVAC systems
Construction: Electrostatically charged synthetic media with moisture-resistant beverage board frame
Temperature rating: Up to 200°F
Pro Tip: After manufacturing filters for over a decade and serving millions of households, we've found that most homeowners underestimate how much invisible dust, dander, and allergens accumulate in their air. Upgrading from a basic fiberglass filter to a pleated MERV 11 or 13 often delivers noticeable air quality improvements within the first week—making you the hero of healthier air for your family.
Offering diverse MERV ratings, 14x24x1 air filters enhance indoor air quality by eliminating more airborne particles.
These advanced technology filters outperform traditional versions by a factor of 20, promoting healthier living spaces.
Comparisons to other brands reveal superior air quality improvements in homes using our filters, emphasizing their effectiveness and enduring performance.
Built from resilient materials, our filters offer resistance to high humidity and efficiently remove particulates in different situations.
For homes housing pets or residents with allergies, frequent filter changes can significantly upgrade air quality while boosting HVAC performance.
Here's something that might surprise you: hardware stores typically stock only 10-15 of the most popular filter sizes. The 14x24x1, while a standard size for many HVAC systems, doesn't make the cut for most retail displays—not because it's uncommon, but because retailers can't stock all 600+ standard sizes.
This leaves homeowners with this filter size facing three bad options:
1. Order expensive brand-name filters online with long shipping.
2. Buy a "close enough" size that allows air bypass.
3. Drive to multiple stores hoping to find it.
The FilterBuy Solution: We manufacture 14x24x1 filters in our American facilities and ship within 24 hours. Whether you need one filter or a year's supply, we've got you covered with direct-from-manufacturer pricing.
This AFB14x24x1M8 air filter, measuring 13 3/8 x 23 3/8 x 3/4 inches and made in America, comes with various MERV ratings: 8, 11, 13 and an Odor Eliminator option. It typically ships within a day of your order and fits many standard HVAC systems. MERV ratings indicate how well a filter captures air particles. Higher ratings remove more contaminants. Even if it’s just pet dander or dust mites. There's a MERV rating to meet your needs. Just choose based on your specific situation.
The 14x24x1 filter size is commonly found in:
Carrier and Bryant furnaces (specific models from 1990s-2000s)
Goodman air handlers (select configurations)
York HVAC systems (various residential models)
Custom return air grilles (14" x 24" opening)
Older residential split systems
Some commercial applications with custom sizing
How to Verify Your Size: Check your current filter's printed label or measure your filter slot. The filter should measure approximately 14" x 24" x 1" (nominal size), with actual dimensions being slightly smaller (13 3/8" x 23 3/8" x 3/4") for proper fit.
Important: Never substitute a different size. Even a 16x24x1 or 14x25x1 won't fit properly, allowing air bypass or preventing installation.
These advanced filters come with various MERV ratings to suit your needs and greatly improve indoor air quality. Here are some benefits of air conditioner 14x24x1 air filters:
Longevity: Last up to 90 days, compared to standard filters, reducing the need for frequent replacements.
Health benefits: Ideal for homes with children and pets. Or allergy sufferers. Due to their ability to trap particles and reduce allergens.
Energy savings: Improve air quality and reduce energy costs. This makes your home more energy-efficient.
Eco-friendly: They contribute to a healthier and friendly living space.

These air filters are high quality. Thanks to their quality features. They are ideal for homes with children and allergy sufferers.
Superior efficiency: Advanced filtration technology improves air quality 20 times more than traditional fiberglass filters.
Durability: Made from beverage board to withstand high humidity and temperatures up to 200°F.
Choosing these innovative filters improves air quality and is a smart and cost-effective choice for your household.
Replacing HVAC air filters on time is crucial for optimal performance. Commonly every 2 to 3 months. This schedule may change with the seasons, especially during high pollen periods, so more frequent replacements help maintain efficiency. In homes with pets, young children, or residents with allergies or asthma, filters may need changing every six weeks.
Well-maintained filters provide cleaner air and improve HVAC efficiency, resulting in long-term savings. Skipping this important maintenance is not recommended, as it benefits your health, comfort, and finances.
Filterbuy users report high satisfaction with their effectiveness and durability, noting that they significantly improve home air quality compared to other brands.
Homeowners praise the quick delivery and straightforward refund policy, showcasing great customer service. Customers agree that the quality and performance of these central air filters justify the investment, highlighting their ability to transform home air quality.
A: The actual size of a 14x24x1 air filter is approximately 13.5" x 23.5" x 0.75". This undersizing is standard across the industry and ensures your filter slides easily into the filter slot without bending or forcing.
A: The 14x24x1 is a recognized industry size but falls into the "uncommon standard" category. While not among the top 10 most popular sizes, it's used in many residential HVAC systems—it's just harder to find at local retail stores.
A: The 14x24x1 size is commonly found in mid-sized residential central air systems, particularly those installed between 1980-2005, certain wall-mounted return air grilles, and some light commercial applications. Check your current filter or HVAC manual to confirm your required size.
A: No—we strongly advise against substituting sizes. A 14x25x1 filter is a full inch longer and won't fit properly, creating gaps where unfiltered air bypasses the filter entirely. Always use the exact size your system requires.
A: For standard 1-inch filters, we recommend changing every 60-90 days under normal conditions. Homes with pets, allergies, or multiple occupants should change every 30-60 days. Visually inspect monthly—if you can't see light through it, it's time to replace.
A: MERV 8 provides solid basic filtration for most homes. MERV 11 is ideal for pet owners or mild allergy sufferers. MERV 13 offers optimal protection for severe allergies or respiratory conditions—this is the highest rating we recommend for most residential systems.
A: Because 14x24x1 is an uncommon size, local stores rarely stock it. Ordering online from a manufacturer like Filterbuy is the most reliable option—we manufacture this size in our American facilities and ship directly to your door.
MERV 14 is not too high for a home. It filters smaller particles like bacteria and tobacco smoke. This is useful if someone in your home has a weakened immune system or if someone smokes.
A MERV rating from 8 and 13 is best for homes. It will efficiently filter out common particles but it doesn’t restrict airflow. This is effective for people with specific needs like allergic people or smokers. They benefit from a higher MERV rating.
A MERV 4 is not good enough for most homes. As it can only filter out large particles. These filters are less effective at removing smaller pollutants. Like dust mites and mold spores. Which can be problematic if you have allergies or other respiratory issues. A MERV 8 and MERV 11 is recommended for home use.
Yes, MERV ratings matter for air filters. Higher ratings mean the filter captures smaller particles but they can also restrict airflow. Potentially straining your HVAC system.
MERV 14 filters should be changed every three to four months. But this varies based on your home's size and HVAC usage.
A MERV 13 filter won't hurt your HVAC system but it puts additional strain on it. Due to the denser filtration material. Be sure to check your HVAC system's filter specifications before choosing a higher-rated filter.
Yes, higher MERV filters can restrict airflow. The filter's weave becomes tighter as the MERV rating increases. It’s harder for air to pass through. This causes your HVAC system to work harder.
For a clean room, a MERV rating of 16 or higher is needed. These high-rated filters capture tiny particles as small as 0.3 microns.
One disadvantage of the highest MERV-rated filters is that they can restrict airflow in your HVAC system. This can cause your system to work harder. Leading to increased energy consumption and potential damage over time. They also tend to be more expensive than lower MERV-rated filters.
Pleated filters can restrict airflow if they have a high MERV rating because the tighter weave makes it harder for air to pass through. This isn’t an issue with lower MERV-rated pleated filters.
Whether a MERV 14 filter is worth it depends on your specific needs. It can be beneficial if you have severe allergies or respiratory issues but for most homes a MERV rating of 8 to 13 is sufficient.
Always use the filter size recommended by your HVAC manufacturer. Using a 2-inch filter instead of a 4-inch one reduces air quality and potentially harms your system due to improper filtration.