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Buy Any Size AC or Furnace Filter Online Fast and Easy

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"We're passionate about ensuring you have the right filters for your home or business."

- Mark and Michelle, AC Filters 4 Less

Buy Any Size AC or Furnace Filter Online Fast and Easy
heropage pp

"We're passionate about ensuring you have the right filters for your home or business."

- Mark and Michelle, AC Filters 4 Less

Questions? We're Just a Phone Call, Email, or Text Away!

Shop by Type

Find the right filter for your specific needs. Whether you're looking for pleated, fiberglass, or custom air filters, our extensive selection perfectly matches your HVAC system's requirements.

Shop by Size

Discover your ideal air filter size for your AC or furnace. Choose from a wide range of sizes from top brands, each filter tailored to your specific size and MERV requirements. Experience superior quality that exceeds OEM standards, all at prices that beat the competition.

Shop by MERV Rating

Explore filters by MERV rating tailored to meet your needs. Select the perfect level of air quality for your home or business from our comprehensive range, designed to suit various air quality needs and health requirements.

Shop by Brands

Explore our filters to discover the perfect match for any HVAC brand's requirements. We are here to help you find the ideal filter to meet your HVAC brand requirements.
Koch Air Filter Solutions: Fiberglass, Polyester & Pleated
Rheem and Ruud
5" Trane Perfect Fit and Expandable AC & Furnace Filter - MERV 8 for Superior Air Quality

Why Buy Air Filters from AC Filters 4 Less?

Mark and Michelle- Owners of AC Filters 4 Less

When we founded AC Filters 4 Less over a decade ago in Coral Springs, Florida, our mission was clear—we wanted to build a company that genuinely understood your needs and provided personalized service to help explain the filter industry and ensure each of our customers got the best filter for their unique situation. As we embark on a new chapter in life (retirement!), we are thrilled to pass the torch to Bill and his sons. With 30+ years of business experience, Bill brings a fresh perspective and the same unwavering commitment to upholding superior service. - Warm Regards,
Mark and Michelle Platt

Reviews from Satisfied Customers
The furnace filters were easy to order, delivered quickly, and at a great price! If you have issues with the order, you can speak to the owners personally when you call.
Mike Brendus
I just ordered AC filters for the first time from The customer service is excellent. I had a question about our order, and the response was terrific! AC Filters 4 Less is a great company with reasonable prices and excellent customer service!
Kenneth B.
I just moved into a new home in Coral Springs. While stocking up on necessities I need throughout the year to maintain my house, I came across this air filter company. Here, I can get high-quality AC filters for half the price I would pay anywhere else. The service is second to none. I highly recommend that you do, too!!! You will appreciate the excellent service they provide. Buy smart, buy with this company, and you won’t regret it.
Jonathan Kaise
I ordered air filters but accidentally entered my incorrect home address. FedEx delivered the filters to the incorrect address. AC Filters 4 Less 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.
William Wakeling
Mark with AC Filters 4 Less is ALWAYS on top of things regarding my air filter orders. He's got this and then some. Way to Go!
Tom Keady
Our central A/C requires a custom-size filter that is hard-to-find and custom-size. AC Filters 4 Less has gone out of its way to ensure we get the right size at a fair price. It is a professional and friendly business—I highly recommend it!
Randy Kurtz


Why Purchase from


What size AC or furnace filters do I need for my HVAC unit?


Does Using The Correct Air Filter Save Money While Improving Indoor Air Quality?


Common Size for Most Air Filters


How often should you change your air filter or furnace filter?


Do You Offer an Air Filter Subscription Service?


What's the Best AC Filter or Furnace Filter for Me?


Custom Air Filters Made to Your Exact Size and Quality Standards


What are air filters made of?


Breathe Easier with the Best Allergy Relief Air Conditioner Filters


What Makes Us Different From Our Competitors

When you place a call to AC Filters 4 Less, you will be speaking to the owners, Mark and Michelle. We guaranty that you will be completely satisfied because we have your best interest at heart. We strive to give the very best customer service possible. We want to make sure that every customer receives the best filter for their needs. We want our customers to feel confident knowing that they are dealing with a licensed professional company.

Mark Platt, Owner of AC Filters 4 Less, has been in the air conditioning business since 1980. If you need any technical information, he will gladly answer any questions you may have.

We Have The Best AC Filters and Furnace Filters

If you need help with online buying decisions, look no further Mark and Michelle owners of AC Filters 4 Less are here to answer any questions you my have. We understand the technical aspects when it comes to indoor air quality solutions. We want our customers to breathe the cleanest air possible and is why we often recommend pleated air filters as your replacement filter. Call us we are here for you.

Money Saving Tips for AC Filters and Furnace Filters

One of the easiest steps, but one of the most important, is to change the air conditioner filters regularly, to keep the ducts, motor and the evaporator coil clean. This will also help the air condition or furnace unit run at maximum efficiency, which will also save money on the electric bill.

Dirt and poor maintenance are the top two reasons for A/C or furnace system failures. Spending a little money now on an AC filter or furnace filter can help prevent spending hundreds of dollars on repairs in the future.

When air conditioning or furnace filters are changed in the home or office, the indoor air quality immediately improves. This will keep germs from spreading and promote good health. Part of maintaining a healthy home or workplace environment, involves making sure that everyone breathes the cleanest air possible.

Changing or upgrading the AC filters or furnace filters on a regular basis, will helps protect families from colds and flu. This is truly the best way to eliminate airborne particles in the air. Let's promote a healthy home environment by reducing airborne germs, dust, pollen, allergens, bacteria, mold and viruses.

Get started by purchasing our discount filters today and take advantage of our everyday low prices.

We also offer a high volume discount on our bulk AC Filters and Furnace Filters for commercial accounts. Our commercial pricing is available per customer request. Please fill out the form on our contact us page and we will respond asap with a free quote.

We Have The Best AC Filters And Furnace Filters For People With Allergies

We highly recommend our permanent aluminum frame and disposable orange and white media filter pads for people who suffer from allergies, asthma, etc. The media filter pads holds a Merv 8 rating and they are cut to your exact size. We offer a lifetime warranty on the aluminum frame.

We have allergy relief products like our orange and white media filter pads that can be cut into any filter dimensions needed. They hold the most dust and debris without restricting the airflow like a pleated filter can. If you have a custom size filter, this product is a great alternative. You will also be amazed on the quality of air you breath when purchasing this product. Call now for a free quote.

It is possible to order ac filters Amazon fast for AC Filter Replacement?

Overall, ordering air conditioning filters on Amazon can be a convenient and fast option, but carefully consider the factors below before making your purchase.

Ordering filters from an expert can have several benefits:
  • Expertise: An expert in air filters will have a deep understanding of the different types of filters available and their respective MERV ratings, making it easier for them to recommend the right filter for your specific needs.
  • Custom Filters: Experts can provide custom-sized filters that are made to fit specific sizes or shapes that are not available in standard ones.
  • Quality: Experts typically sell high-quality filters that are made from durable materials and are designed to last longer than standard filters.
  • Professional installation: Some experts may offer professional installation services, which can ensure that your filter is installed correctly and is working at its best.
  • Access to hard-to-find filters: Some experts may have access to hard-to-find filters that are not available to the general public.

Common ac air filter measurements:

There are many different sizes available on the market, but some of the most common AC and furnace sizes are AC filters 16x25x1, 10x20x1, 12x12x1, 14x14x1, 20x20x1, 20x25x1.

Discover Why Orange and White Media Pads Are Better Than Pleated Filters for AC Filters!

Orange and white media pads are the perfect AC filter solution since they trap more dust without reducing the MERV rating, unlike pleated filters. Pleated filters, on the other hand, can increase their MERV rating every week as air hits a flat surface. If you're already using a MERV 11 or 13 filter with no issues, stick with it. If you encounter airflow problems, switch to a MERV 8 pleated filter or replace the filters more frequently. It's important to note that a higher MERV rating might not be suitable for your unit due to design or airflow constraints.

Understanding AC and Furnace Filter Locations in Northern States Versus Southern

When it comes to AC filters and furnace filters, location is key. In the North, furnaces are typically located in the basement with the ductwork running up to the floors. Return air filters can be found in the floor, lower part of the wall, or even in the furnace itself. Heat pump units, more common in the South, offer greater flexibility in filter placement. Commercial properties in the North may have filters located in various places. In hotter climates, it's important to change filters more frequently to ensure optimal performance. Residential properties in the South typically have three or four options for AC and furnace systems, including split systems (the most popular), heat pump systems, and all-in-one package units. High-rises and commercial buildings may use package units or water-cooled towers, which require filters in various locations throughout the building. Stay on top of your filter maintenance for better air quality and HVAC system efficiency.

This home goods store not only has the best air filters

They have extensive knowledge in air purification, and they are also home allergy control experts.

Troubleshooting Tips

If the AC unit is not cooling, first check the thermostat to make sure it is working properly. If the screen is blank the battery needs to be replaced. Most people don't realize that some thermostats take batteries.

If the air conditioner unit is blowing warm air, the filter could be clogged or the safety switch on the drain line might have turned the unit off. The filter will have to be replaced, and the drain line my need to be serviced.

To keep the HVAC ice cold, it is best to change the air filters more often. We recommend changing the filter every 4 to 8 weeks or as needed. This will prevent the unit from leaking water or freezing up and will avoid spending unnecessary money on an ac repair.

It is also important to have a maintenance inspection done on the air conditioning system, by a licensed professional service technician at least once a year.

When searching for a replacement central air conditioning HEPA Filter for the home or business, it is a great idea to have the size, model number and part number available.

Look No Further

We can custom make any size AC filter or furnace filter that you are looking for. Our Glasfloss and Purolator HVAC filters are made in the USA.

A/C Filters 4 Less offers discount filters throughout the United States and provides FREE shipping on all orders. Our filters are delivered right to your door and shopping online is a great way to save time, money and gas.

When inquiring about AC Filters, Furnace Filters, Air Filters, Discount Filters, Bulk Filters, contact the expert for a free no obligation quote.

Rheem AC Filters are hard to find, not with AC Filters 4 Less. Call Now.

We have all of our AC Filters and Furnace Filter sizes available in a variety of different brands to choose from.

Home Depot, Lowes, Walmart or Ace Hardware never seem to have the correct AC Filter or Furnace Filter sizes you need.

Custom size hard to find air filters is our specialty. We can custom make any size air filter you need in a variety of different types to choose from. Contact us today for a free quote.

We Make Custom Filters!

Custom ac filter sizes are made to fit specific sizes or shapes that are not available in standard sizes.

They are often used in industrial or commercial settings where standard air filters are not suitable for the equipment or space that needs to be filtered.

They can also be used in residential settings for specialized HVAC systems or for those with unique needs, such as allergies or respiratory issues.

Custom air filters can be made from various materials, including fiberglass, polyester, and pleated media. They can be designed to remove specific types of pollutants, such as dust, pollen, or chemicals.

We can make any filter size here at AC Filters Online. You can't get AC filters nearby that are custom created; these can only be ordered online.

Do I need an air purifier if I have good air filters?

Air filters and purifiers serve different purposes, and while they both work to improve air, they do so in different ways.

Air filters are designed to remove particles, such as dust and pollen, from the air as it is circulated through your heating and cooling system. These filters can be highly effective at trapping these particles. Still, they are not designed to remove certain other types of pollutants, such as volatile organic compounds (VOCs), allergens, or odors.

Purifiers, on the other hand, use different technologies, such as HEPA filters, activated carbon filters, and UV-C light, to remove a wider range of pollutants from the air. They are typically more effective at removing smaller particles, such as mold spores, bacteria, viruses, VOCs, allergens, and odors.

AC and Furnace Filters: How to Choose the Right MERV Rating and Type.

For residential clients who ask for a higher MERV rating filter, the first thing we ask them is what MERV rating they have been using. We also ask if they know whether their inside unit fan runs at one speed or is variable speed, with the fan running quietly or audibly. If it's a variable-speed fan, they could use a higher MERV rating if they maintain their coils. However, if the client doesn't know, I advise them to stick with their current filter to avoid airflow issues. Suppose they already use a fiberglass filter in the South and are satisfied with it. In that case, I maintain that or sometimes upgrade them to a poly filter, but only within that since I know the coils will already be dirty if they are using fiberglass filters. Those with a fiberglass filter up North need to stick with fiberglass or poly unless they have been using a pleated filter with no issues. Note that many furnaces cannot handle pleated filters, but not everyone up North has a furnace. They might have a heat pump that allows them to use almost anything, depending on whether the unit has a variable-speed fan and whether they maintain the coil. Furnace units are typically best for heating homes in the coldest weather, while every central air unit needs a filter. In hotter climates, people run their units constantly, necessitating more frequent filter changes. Additionally, older people up North tend to run their heat more often due to their age but may not change the filter as often. It depends on how well they maintain their system. Custom-size or strange-size air filters are more of an issue in the South than the North since people in the South tend to change their filters more frequently. However, we do receive some crazy large-size air filter requests from people up North at times.

What is the best brand A/C or furnace filters to buy?

Flanders air filters have been the preferred brand when looking for the best air conditioning and heating filters. Flanders Precisionaire - foremost in air filtration has improved energy efficient filters.

Established in 1936, Glasfloss Industries is the oldest manufacturer of Air Filtration products in the USA. Glasfloss Purchases New Manufacturing and Corporate Headquarters to give much needed additional manufacturing, warehouse space to better serve our customers. This will enhance our ability to get products in and out of the facility more efficiently.

Where can I buy air filters right here right now?

We have all brands and sizes to choose from.
Call now and save time money and gas.

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