Free Shipping On All Orders
Guaranteed Lowest Prices on Custom Size AC Filters and Custom Furnace Filters
Welcome to AC Filters 4 Less, your premier custom air filter manufacturer. We are the home of hard-to-find size air filters tailored to suit the unique requirements of your HVAC system. We understand that every HVAC system is distinct, so we specialize in providing non-standard-size AC filters, furnace filters, and custom metal air filter frames made to exact specifications, all online and with free shipping. Say goodbye to ill-fitting A/C and furnace filters and hello to optimal air filtration!
Step-by-Step Guide
to Ordering Custom Air Filters: Measure, Choose, and Contact Us
Ordering made-to-order air filters for your home from AC Filters 4 Less is relatively simple. Provide us with the dimensions of your existing filter, and our dedicated team will handle the rest. With our commitment to customer satisfaction, you can expect fast turnaround times and competitive pricing that makes improving indoor air quality a breeze. Trust us to deliver the custom air filter solution you deserve.
1. Measure the dimensions of your existing air filter
To ensure that your custom air filter will fit properly, you'll need to measure the dimensions of your current filter. This includes the length, width, and depth of the filter. Make sure to measure in inches as precisely as possible.
2. Choose the filter media
Custom air filters can be made with different types of filter media. Standard options include fiberglass, polyester, and pleated. Look at what your current filters have listed on the side. Consider the specific needs of your home and your HVAC system when choosing a filter media. For example, if you have pets, choose a filter media with a higher MERV rating to capture pet dander. We can help you determine if you are not sure.
3. Send us a message or call us
Provide us with your measurements, filter media choice, and other relevant information. Make sure to double-check your order before submitting it to ensure that all the details are correct. Call or text us at 954-588-7774. You can also drop us a note in the below form.
4. Install the filter
When your custom air filter arrives, you can install it in your HVAC system according to the manufacturer's instructions. Make sure to dispose of your old filter properly.
Get Your Custom Filters Now: Contact Us for Quick and
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Customer Reviews:
Real Feedback on Custom Filters for HVAC Systems
Our central A/C requires a hard-to-find filter size. AC Filters 4 Less has gone out of their way to make sure we get the exact right size at a fair prize. A professional and friendly business--I highly recommend!
Randy Kurtz
I ordered filters and I accidentally put in my incorrect home address. FedEx delivered the filters to the incorrect address. Even though I tried to resolve the issue with FedEx that same day they were not helpful AC filters for last was on top of it right away they were excellent with customer service. They took care of me. They resent filters to my correct address at no additional charge. We are still trying to resolve the other box with FedEx but from start to finish this company is five star customer service Carol Annie Wakeling.
William Wakeling
Mark with AC Filters 4 Less is ALWAYS on top of things regarding my orders. He's got this and then some. Way to Go!!!
Tom Keady
A/C Filters 4 Less is one of the best companies I have ever dealt with. Their prices and knowledge are the very best. I can't say enough about how great their customer service is, which we all know is very rare these days. I ordered the wrong filters by mistake and Mark went out of his way to help me - he was more than fair! I plan on ordering all my filters from them in the future. I would give them 10 stars if I could!
Bonnie Wolf
Ensuring an Accurate Fit:
Provide the Right Information to Your
Custom Air Filter Supplier
It's essential to recognize that the stamped size on most air filters does not necessarily reflect the actual dimensions of the filter. For instance, a filter labeled 20x20x1 may measure 19 3/4 x 19 3/4 x 3/4. We encourage you to measure your current air filter carefully to ensure you get the precise dimensions. By providing the exact measurements, we can create a custom filter that fits like a glove.
Unmatched Quality and MERV Ratings:
Choosing The Right Custom Air Filters for Cleaner and Healthier Indoor Air

At AC Filters 4 Less, we take pride in offering custom air filters crafted from high-quality materials that deliver exceptional performance. With a comprehensive range of MERV ratings available, from MERV 8 to MERV 13, you can select the perfect filter that matches your needs. Enjoy peace of mind knowing that our filters effectively capture airborne contaminants, ensuring cleaner and healthier indoor air.

Customer Filters are available in following filters type.

Fiberglass MERV 3-4
A MERV rating of 3-4 is typically considered suitable for capturing larger particles such as pollen, dust mites, and carpet fibers—filters with this rating suit residential settings with minimal air quality concerns.
Polyester MERV 5-6
A MERV rating of 5-6 is considered good for capturing smaller particles such as mold spores, pet dander, and fine dust. They are commonly used in homes, offices, and commercial spaces where moderate air quality concerns exist.
Pleated MERV 8
Good for capturing a wide range of particles, including dust, pollen, mold spores, pet dander, and other common household allergens. Strikes a balance between filtration efficiency and airflow, providing effective particle capture while allowing adequate airflow for HVAC systems to operate efficiently.
Orange & White Media Pads
The perfect AC filter solution since they trap more dust without reducing the MERV rating, unlike pleated filters. These are best for people with allergy concerns. They hold the most dust and debris without restricting the airflow like a pleated filter can.
Pleated MERV 10
Provides a higher filtration efficiency so commonly used in residential and commercial settings, including offices, schools, hospitals, and other spaces where higher air quality standards are desired. Ensuring that your HVAC system can accommodate airflow resistance is essential. 

Pleated MERV 13
Used in environments where the highest level of filtration is expected, such as hospitals, laboratories, and other sensitive spaces. It may have higher airflow resistance, so it's essential to ensure that your HVAC system can handle the increased pressure drop.

The Benefits of Using Custom
Filters for HVAC Systems

Custom air conditioning and furnace filters are an excellent option for homeowners and businesses looking for a more precise fit for their HVAC systems. These filters are made to order, with the dimensions and specifications tailored to match the specific needs of your equipment.

Another benefit of custom-sized filters is that they can be made to match the particular needs of your HVAC system. For example, you can choose unique size air filter media with a higher MERV (minimum efficiency reporting value) rating to capture smaller particles, such as pet dander and mold spores. You can also choose filter media made of different materials, such as synthetic or natural fibers, to suit your needs. Custom-size filters are also great for hard-to-fit HVAC systems, such as those in older homes or commercial buildings. These filters can be made to fit unique dimensions, ensuring your system runs at its best.

It's important to remember that custom HVAC filters are more expensive than standard off-the-shelf filters, but they can be worth the investment for a better fit and improved performance. Plus, we guarantee the lowest prices on the internet for special-size air filters.

Affordable, High-Quality Custom Air Filters
and Guaranteed Low Pricing

At AC Filters 4 Less, we believe everyone deserves access to high-quality air filtration solutions without breaking the bank. That's why we offer guaranteed low pricing on our custom air filters. We check out competitors on every custom order we place to ensure our customers see significant savings on every custom air filter order. To be as competitive as possible and sell our customers the best custom air filters, our custom-size filters come in cases of 6 or 12, depending on the width.

Perfect Fit Custom Size Filters:
Meticulously Crafted for Your HVAC System

Our custom size filters are crafted to tolerances of + or - 1/8", ensuring a perfect fit for your HVAC system. By providing us with the precise dimensions of your desired filter, you can have confidence that your custom filter will seamlessly integrate into your system. Please note that these filters are non-returnable for refund or credit due to their customized nature.

Custom air filters vs. custom furnace filters:
Understanding the difference.

It's critical to recognize that custom furnace filters and custom A/C filters are essentially the same. The terminology used may vary depending on the region or individual preference. People in the North, for instance, frequently call them "furnace filters," while those in the South frequently call them "AC filters." Whatever you call them, providing specialized filtration solutions for HVAC systems remains the goal and function. You may be sure that the answer meant to improve indoor air quality and safeguard your system is the same whether you need a custom furnace filter or an AC filter.

Exceptional Customer Support
for Non-Standard Size Filters

We love to talk to our customers! Yes, communicate one-on-one to ensure you get exactly what you need. Our commitment to your satisfaction doesn't stop with providing top-notch custom air filters. At AC Filters 4 Less, we offer exceptional customer support throughout your journey. If you have any questions about our custom air filters or need assistance selecting the perfect filter for your HVAC system, our knowledgeable team is here to help. Trust us to provide personalized support and expert guidance, ensuring your air filtration needs are met excellently.

Contact us now to discover the perfect custom air filter solution for your HVAC system. Improve your indoor air quality with AC Filters 4 Less - your trusted partner in air filtration. Call or text us at 954-588-7774, email us at, or use the above form to reach out to us.

Some of the Hard-to-Find Unique Sizes We See
Some of the custom size filters we have created over the years are listed here. We have a solution for any size you need, so don't worry if your size is missing from the list. To order your custom-sized furnace filters or air conditioner filters, get in touch with us right away. Call or text 954-588-7774, email us at, or use our contact form. Please provide us with your measurements, filter medium choice, and other pertinent details. Verify your order again before submitting it to ensure all the information is accurate. Our staff is here to help you and respond to your inquiries. You can depend on us to provide the ideal custom filter for your HVAC system.
Custom filters are available in fiberglass, polyester and pleated in thickness of 1", 2" and 4".

7-1/2x11-1/2x1 Filter13-1/4x29x1 Filter17x35x1 Filter20x22-1/4x1 Filter
7-1/2x14-3/4x1 Filter13-3/4x17-3/4x1 Filter18-1/2x19-1/2x1 Filter20x22-1/2x1 Filter
7-1/4x7-1/4x1 Filter13-7/8x25-7/8x1 Filter18-1/2x21x1 Filter20x23-1/2x1 Filter
7-3/8x35-3/8x1 Filter14-1/2x16x1 Filter18-7/8x20-7/8x1 Filter20x23x1 Filter
7-7/8x23-7/8x1 Filter14x14x1 Filter18x25x1 Filter20x36x1 Filter
8-1/4x19-3/4x1 Filter14x18x1 Filter18x36x1 Filter21-1/2x21-1/2x1 Filter
8-7/8x-20-7/8x1 Filter15-1/2x23-1/2x1 Filter19-1/2x19x1 Filter21-1/2x21-1/2x1 Filter
8x16x1 Filter15-1/2x24x1 Filter19-1/2x21x1 Filter21-1/2x23-1/4x1 Filter
8x30x1 Filter15-1/2x29-1/4x1 Filter19-1/2x21x3/4 Filter21-1/2x23-1/4x1 Filter
9-1/2x17-5/8x1 Filter15-1/4x35-1/4x1 Filter19-1/2x22-1/2x1 Filter21-1/2x23-3/8x1 Filter
9-1/2x23-1/2x1 Filter15x15x1 Filter19-1/2x23-1/2x1 Filter21-1/2x23-3/8x1 Filter
9-1/2x23-1/2x1 Filter15x30-5/8x1 Filter19-1/2x23-1/2x1 Filter21-1/2x26x1 Filter
9-1/2x23.5x1 Filter15x30x1 Filter19-1/2x23-1/2x7/8 Filter21-1/4x37-1/4 Filter
9-1/2x29x1 Filter16-1/2x20-3/4x1 Filter19-1/2x23x1 Filter21-1/4x37-1/4x1 Filter
9-1/4x25-3/4x1 Filter16-1/2x21-1/2x1 Filter19-1/4x23-1/4x1 Filter21-1/8x21-1/8x1 Filter
9-1/4x29-1/4x1 Filter16-1/2x21-5/8x1 Filter19-1/4x23-3/8x1 Filter21-3/8x22-5/8x1 Filter
9-1/4x9-1/4x1 Filter16-1/4x21-1/4x1 Filter19-1/4x29-1/4x1 Filter21-7/8x25-7/8x1 Filter
9-3/8x9-3/8x1 Filter16-1/4x21-3/4x1 Filter19-1/4x29x1 Filter21x21x1 Filter
9-5/8x13-3/4x1 Filter16-3/8x21-1/2x1 Filter19-1/4x35-1/4x1 Filter21x23-1/2x1 Filter
10x18x1 Filter16-3/8x21-3/8x1 Filter19-1/4x47-1/4x1 Filter21x24x1 Filter
10x21-1/2x1 Filter16-7/8x27-7/8x1 Filter19-3/4x21-1/4x1 Filter21x37x1 Filter
10x25x1 Filter16x18x1 Filter19-3/4x22-3/4x1 Filter22-1/2x24-1/2x1 Filter
11-1/2x21-1/2x1 Filter16x21-1/2x1 Filter19-3/8x19-3/8x1 Filter22-3/8x38-1/4x1 Filter
11-1/2x23x1 Filter16x21-3/4x1x1 Filter19-3/8x23-1/8x1 Filter22-7/8x34-7/8x1 Filter
11-1/2x29-1/2x1 Filter16x21x1 Filter19-7/8x21-1/2x1 Filter22x22x1 Filter
11-1/2x29-1/2x1 Filter16x22-1/4x1 Filter19-7/8x21-1/8x1 Filter22x23-1/2x1 Filter
11-1/2x35x1 Filter17-1/2x20-7/8x1 Filter19-7/8x21-3/8x1 Filter22x23-1/2x1 Filter
11-1/4x11-1/4x1 Filter17-1/2x21-1/2x1 Filter19-7/8x21x1 Filter22x24-1/2x1 Filter
11-1/4x23-1/4x1 Filter17-1/2x21x1 Filter19x23x1 Filter22x24x1 Filter
11-1/4x23-3/8x1 Filter17-1/2x21x1 Filter19x27x1 Filter22x25x1 Filter
11-1/8x23-1/8x1 Filter17-1/2x21x1 Filter19x31x1 Filter23-1/2x39-1/2x1 Filter
11-1/8x23x1 Filter17-1/2x29-1/2x1 Filter20-1/2x22-3/4x1 Filter23-1/4x17x1 Filter
11-3/8x11-3/8x1 Filter17-1/2x35-1/2x1 Filter20-1/2x23x1 Filter23x17x1 Filter
11-3/8x23-1/8x1 Filter17-1/2x35-1/2x1 Filter20-1/8x24-1/8x1 Filter23x23x1 Filter
11x11x1 Filter17-1/4x21-3/4x1 Filter20-3/4x22-1/2 x 1 Filter23x24-1/2x1 Filter
12-1/8x251/2x1 Filter17-1/4x29-1/4x1 Filter20-5/8x20-5/8x1 Filter23x35x1 Filter
12x30-5/8x1 Filter17-1/4x35-1/2x1 Filter20-7/8x20-7/8x1 Filter24-1/2x22x1 Filter
12x30-5/8x1 Filter17-1/4x35-1/4x1 Filter20-7/8x21-7/8x1 Filter24-1/4x10-1/2x1 Filter
12x30x1 Filter17-3/8x23-3/8x1 Filter20x20-1/4x1 Filter24x36x1 Filter
12x36x1 Filter17-7/8x19-5/8x1 Filter20x21-1/2x1 Filter25-3/4x20x1 Filter
13-1/2x13-1/4x1 Filter17.5x21.5x1 Filter20x21-1/2x1 Filter25x25x1 Filter
13-1/2x24x3/4 Filter17x21x1 Filter20x21-3/8x1 Filter31x10-1/2x1 Filter
13-1/4x19x1 Filter
Discover the convenience and effectiveness of custom AC and furnace filters near you with AC Filters for Less.
Get Your Custom Filters Now: Contact Us for Quick and
Easy Ordering Order Now

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