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🚚 Free Shipping | Top-Brands HVAC Filters | 5⭐ Trusted!
🚚 Free Shipping | Top-Brands HVAC Filters | 5⭐ Trusted!

Shop Air Filters

Forced air systems, like furnaces, air conditioning and heat pumps, move warm or cool air to your home through ducts and vents. To prevent dust and debris from being blown into your home along with that warm and cold air, your system will have one or maybe more filters. The filters not only improve indoor air quality but they also protect your forced air system. When filters get clogged with too much dust, they reduce the efficiency of your system and increase heating and cooling costs, since its harder for air to move from your heating system into your home. The build-up of hot air behind a very clogged filter can even raise the temperature near your heating system enough to trigger its emergency shut-off mechanism, causing your heating system to turn on and off intermittently. Clogged filters can also mean more mold, dust and other allergens in your home. Our goal at RememberTheFilter.com is to be the very best in indoor air filtration. With so many types of filters and our large selection it can be a little overwhelming. Here is a collection of our most popular filters for your forced air system. Many filters to choose from. Many ways to find them. Search for your filter by size, brand, filtration level and more!

Filters

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Original price $ 127.99 - Original price $ 127.99
Original price
$ 127.99
$ 127.99 - $ 127.99
Current price $ 127.99

15x24x1 EZ Flow II Filters 10055.011524 (12 Filters)

EZ Flow HVAC Filters - Trusted Air Filtration For over 20 years, RememberTheFilter.com has proudly offered the EZ Flow II HVAC Filter, a MERV 1-4-r...

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Original price $ 127.99 - Original price $ 127.99
Original price
$ 127.99
$ 127.99 - $ 127.99
Current price $ 127.99
Original price $ 126.99 - Original price $ 126.99
Original price
$ 126.99
$ 126.99 - $ 126.99
Current price $ 126.99

Discontinued - 12x36x1 EZ Flow Filters 10155.011236 (12 Filters)

Last stock, all sales final. This filter is discontinued by the manufacturer AAF Flanders. The recommended replacement is the EZ Flow II Filters. C...

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Original price $ 126.99 - Original price $ 126.99
Original price
$ 126.99
$ 126.99 - $ 126.99
Current price $ 126.99
Sold out / Discontinued
Original price $ 98.99 - Original price $ 98.99
Original price
$ 98.99
$ 98.99 - $ 98.99
Current price $ 98.99

23x23x1 EZ Flow Filters 10055.012323 (12 Filters)

EZ Flow HVAC Filters - Trusted Air Filtration For over 20 years, RememberTheFilter.com has proudly offered the EZ Flow II HVAC Filter, a MERV 1-4-r...

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Original price $ 98.99 - Original price $ 98.99
Original price
$ 98.99
$ 98.99 - $ 98.99
Current price $ 98.99
Original price $ 127.99 - Original price $ 127.99
Original price
$ 127.99
$ 127.99 - $ 127.99
Current price $ 127.99

Discontinued - 16x30x1 EZ Flow Filters 10155.011630 (12 Filters)

Last stock, all sales final. This filter is discontinued by the manufacturer AAF Flanders. The recommended replacement is the EZ Flow II Filters. C...

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Original price $ 127.99 - Original price $ 127.99
Original price
$ 127.99
$ 127.99 - $ 127.99
Current price $ 127.99
Sold out / Discontinued
Original price $ 61.99 - Original price $ 61.99
Original price
$ 61.99
$ 61.99 - $ 61.99
Current price $ 61.99

15x20x1 EZ Flow Filters 10055.011520 (12 Filters)

EZ Flow HVAC Filters - Trusted Air Filtration For over 20 years, RememberTheFilter.com has proudly offered the EZ Flow II HVAC Filter, a MERV 1-4-r...

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Original price $ 61.99 - Original price $ 61.99
Original price
$ 61.99
$ 61.99 - $ 61.99
Current price $ 61.99
Original price $ 109.99 - Original price $ 109.99
Original price
$ 109.99
$ 109.99 - $ 109.99
Current price $ 109.99

15x24x1/4 Naturalaire Kwik Kut Foam Filter KK500 - 24 pack

Flanders Precisionaire Naturalaire KK500, 15" x 24" x 1/4", Foam Poly Packed, Kwik Kut Filter. Simply cut the filter to the desired size. Reduces D...

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Original price $ 109.99 - Original price $ 109.99
Original price
$ 109.99
$ 109.99 - $ 109.99
Current price $ 109.99
Original price $ 201.99 - Original price $ 201.99
Original price
$ 201.99
$ 201.99 - $ 201.99
Current price $ 201.99

3M Filtrete FAPF03 Compatible Air Purifier Filter MERV 8 (12 pack)

The RTF Filtrete FAPF03 Compatible Air Filter is a replacement filter for 3M Filtrete's FAPF03 Air Filter that fits Filtrete's Ultra Clean Air Puri...

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Original price $ 201.99 - Original price $ 201.99
Original price
$ 201.99
$ 201.99 - $ 201.99
Current price $ 201.99
Original price $ 77.99 - Original price $ 77.99
Original price
$ 77.99
$ 77.99 - $ 77.99
Current price $ 77.99

8x30x1 EZ Flow Filters 10055.01830 (12 Filters)

EZ Flow HVAC Filters - Trusted Air Filtration For over 20 years, RememberTheFilter.com has proudly offered the EZ Flow II HVAC Filter, a MERV 1-4-r...

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Original price $ 77.99 - Original price $ 77.99
Original price
$ 77.99
$ 77.99 - $ 77.99
Current price $ 77.99
Original price $ 94.99 - Original price $ 94.99
Original price
$ 94.99
$ 94.99 - $ 94.99
Current price $ 94.99

16x32x1 EZ Flow Filters 10055.011632 (12 Filters)

EZ Flow HVAC Filters - Trusted Air Filtration For over 20 years, RememberTheFilter.com has proudly offered the EZ Flow II HVAC Filter, a MERV 1-4-r...

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Original price $ 94.99 - Original price $ 94.99
Original price
$ 94.99
$ 94.99 - $ 94.99
Current price $ 94.99
Original price $ 126.99 - Original price $ 126.99
Original price
$ 126.99
$ 126.99 - $ 126.99
Current price $ 126.99

12x36x1 EZ Flow Filters 10055.011236 (12 Filters)

EZ Flow HVAC Filters - Trusted Air Filtration For over 20 years, RememberTheFilter.com has proudly offered the EZ Flow II HVAC Filter, a MERV 1-4-r...

View full details
Original price $ 126.99 - Original price $ 126.99
Original price
$ 126.99
$ 126.99 - $ 126.99
Current price $ 126.99
Original price $ 210.99 - Original price $ 210.99
Original price
$ 210.99
$ 210.99 - $ 210.99
Current price $ 210.99

30x30x1 PREpleat LPD Standard Capacity Filters (12 pack)

We're excited to introduce the newly improved AAF Flanders PREpleat LPD (Low Pressure Drop) SC (Standard Capacity) filter, now featuring a MERV 10 ...

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Original price $ 210.99 - Original price $ 210.99
Original price
$ 210.99
$ 210.99 - $ 210.99
Current price $ 210.99
Sold out / Discontinued
Original price $ 0.00 - Original price $ 0.00
Original price
$ 0.00
$ 0.00 - $ 0.00
Current price $ 0.00

Discontinued - 8x14x1 EZ Flow Filters 10155.01814 (12 Filters)

Last stock, all sales final. This filter is discontinued by the manufacturer AAF Flanders. The recommended replacement is the EZ Flow II Filters. C...

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Original price $ 0.00 - Original price $ 0.00
Original price
$ 0.00
$ 0.00 - $ 0.00
Current price $ 0.00
Sold out / Discontinued
Original price $ 0.00 - Original price $ 0.00
Original price
$ 0.00
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Current price $ 0.00

Discontinued - 16x32x1 EZ Flow Filters 10155.011632 (12 Filters)

Last stock, all sales final. This filter is discontinued by the manufacturer AAF Flanders. The recommended replacement is the EZ Flow II Filters. C...

View full details
Original price $ 0.00 - Original price $ 0.00
Original price
$ 0.00
$ 0.00 - $ 0.00
Current price $ 0.00
Sold out / Discontinued
Original price $ 0.00 - Original price $ 0.00
Original price
$ 0.00
$ 0.00 - $ 0.00
Current price $ 0.00

Discontinued - 20x22-1/4x1 EZ Flow Filters 10155.01202214 (12 Filters)

Last stock, all sales final. This filter is discontinued by the manufacturer AAF Flanders. The recommended replacement is the EZ Flow II Filters. C...

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Original price $ 0.00 - Original price $ 0.00
Original price
$ 0.00
$ 0.00 - $ 0.00
Current price $ 0.00
Sold out / Discontinued
Original price $ 157.99 - Original price $ 157.99
Original price
$ 157.99
$ 157.99 - $ 157.99
Current price $ 157.99

19-1/2x19-1/2x1 EZ Flow II Filters 10055.01195195 (12 Filters)

EZ Flow HVAC Filters - Trusted Air Filtration For over 20 years, RememberTheFilter.com has proudly offered the EZ Flow II HVAC Filter, a MERV 1-4-r...

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Original price $ 157.99 - Original price $ 157.99
Original price
$ 157.99
$ 157.99 - $ 157.99
Current price $ 157.99
Original price $ 96.99 - Original price $ 96.99
Original price
$ 96.99
$ 96.99 - $ 96.99
Current price $ 96.99

17-1/2x23-1/2x1 EZ Flow Filters 10055.01175235 (12 Filters)

EZ Flow HVAC Filters - Trusted Air Filtration For over 20 years, RememberTheFilter.com has proudly offered the EZ Flow II HVAC Filter, a MERV 1-4-r...

View full details
Original price $ 96.99 - Original price $ 96.99
Original price
$ 96.99
$ 96.99 - $ 96.99
Current price $ 96.99
Original price $ 77.99 - Original price $ 77.99
Original price
$ 77.99
$ 77.99 - $ 77.99
Current price $ 77.99

10x16x1 EZ Flow Filters 10055.011016 (12 Filters)

EZ Flow HVAC Filters - Trusted Air Filtration For over 20 years, RememberTheFilter.com has proudly offered the EZ Flow II HVAC Filter, a MERV 1-4-r...

View full details
Original price $ 77.99 - Original price $ 77.99
Original price
$ 77.99
$ 77.99 - $ 77.99
Current price $ 77.99
Original price $ 0.00 - Original price $ 0.00
Original price
$ 0.00
$ 0.00 - $ 0.00
Current price $ 0.00

Discontinued - 20x25x2 EZ Flow II Filters 10055.022025 (12 Filters)

Last stock, all sales final. This filter is discontinued by the manufacturer AAF Flanders. The recommended replacement can be found at the link bel...

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Original price $ 0.00 - Original price $ 0.00
Original price
$ 0.00
$ 0.00 - $ 0.00
Current price $ 0.00
Sold out / Discontinued
Original price $ 89.99 - Original price $ 89.99
Original price
$ 89.99
$ 89.99 - $ 89.99
Current price $ 89.99

17-1/2x17-1/2x1 EZ Flow Filters 10055.01175175 (12 Filters)

EZ Flow HVAC Filters - Trusted Air Filtration For over 20 years, RememberTheFilter.com has proudly offered the EZ Flow II HVAC Filter, a MERV 1-4-r...

View full details
Original price $ 89.99 - Original price $ 89.99
Original price
$ 89.99
$ 89.99 - $ 89.99
Current price $ 89.99
Original price $ 124.99 - Original price $ 124.99
Original price
$ 124.99
$ 124.99 - $ 124.99
Current price $ 124.99

15x24x3/8 Naturalaire Kwik Kut Fiberglass Filter KK600 - 24 Pack

Naturalaire KK600 Cut-to-Fit filter made by Flanders Precisionaire, 15" x 24" x 3/8", Spun Fiberglass, Poly Packed Kwik Kut Air Conditioner Filter....

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Original price $ 124.99 - Original price $ 124.99
Original price
$ 124.99
$ 124.99 - $ 124.99
Current price $ 124.99
Original price $ 0.00 - Original price $ 0.00
Original price
$ 0.00
$ 0.00 - $ 0.00
Current price $ 0.00

Discontinued - 12x18x1 EZ Flow Filters 10155.011218 (12 Filters)

Last stock, all sales final. This filter is discontinued by the manufacturer AAF Flanders. The recommended replacement is the EZ Flow II Filters. C...

View full details
Original price $ 0.00 - Original price $ 0.00
Original price
$ 0.00
$ 0.00 - $ 0.00
Current price $ 0.00
Sold out / Discontinued
Original price $ 0.00 - Original price $ 0.00
Original price
$ 0.00
$ 0.00 - $ 0.00
Current price $ 0.00

Discontinued - 20x20x2 EZ Flow II Filters 10055.022020 (12 Filters)

Last stock, all sales final. This filter is discontinued by the manufacturer AAF Flanders. The recommended replacement can be found at the link bel...

View full details
Original price $ 0.00 - Original price $ 0.00
Original price
$ 0.00
$ 0.00 - $ 0.00
Current price $ 0.00
Sold out / Discontinued
Original price $ 122.99 - Original price $ 122.99
Original price
$ 122.99
$ 122.99 - $ 122.99
Current price $ 122.99

Discontinued - 16x16x2 EZ Flow II Filters 10055.021616 (12 Filters)

Last stock, all sales final. This filter is discontinued by the manufacturer AAF Flanders. The recommended replacement can be found at the link bel...

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Original price $ 122.99 - Original price $ 122.99
Original price
$ 122.99
$ 122.99 - $ 122.99
Current price $ 122.99
Sold out / Discontinued
Original price $ 145.99 - Original price $ 145.99
Original price
$ 145.99
$ 145.99 - $ 145.99
Current price $ 145.99

20x25x5 NaturalAire Optimum Allergen MERV 11 Filters 82755.052025 (2 pack)

Proprietary media combined with AAF Flanders’ unique V-pleat design provides the highest performance pleat available on the market today. MERV 1...

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Original price $ 145.99 - Original price $ 145.99
Original price
$ 145.99
$ 145.99 - $ 145.99
Current price $ 145.99

Your Trusted Source For Filters

We offer a complete selection of high-performance HVAC filters. Whether you're replacing filters in your home, office, or commercial HVAC system, you'll find trusted options in MERV 1–13, including pleated, fiberglass, washable, and specialty filters.

All filters are made in the USA and sourced from leading manufacturers like AAF Flanders and Koch Filter. Choose from standard and custom sizes to ensure a proper fit for your system—and enjoy clean air backed by over 50 years of HVAC experience.

Filter Fit Guarantee™

Have concerns about ordering filters online? Your purchase is backed by our Filter Fit Guarantee™.

Free Delivery

We will ship your filters direct to your door, for free! All orders in the domestic U.S over $50.

Highly Rated Filters

Shop Air Filters from leading manufactuerers.

Have questions about Filters?

What are filters designed for?

are designed to capture airborne particles and improve system performance in a wide range of HVAC and air filtration applications.

How do I know if are right for my system?

The best way to determine if are right for your system is to check your current filter specs, system requirements, or reach out to our team—we’re happy to help you choose the correct option.

Are filters used in residential or commercial systems?

can be used in a variety of applications depending on system compatibility. Some are ideal for homes, while others are built for commercial, industrial, or specialized environments.

How often should filters be replaced or maintained?

Replacement schedules for filters vary based on environment, usage, and filter type. Always follow manufacturer guidelines or consult your facility manager or HVAC technician for best results.

What efficiency levels are available in ?

filters are available in a range of filtration levels—from basic to high-efficiency—based on your air quality goals and system requirements.

Are your filters made in the USA?

Most of our replacements are proudly made in the USA by trusted manufacturers known for quality and performance.

What makes RememberTheFilter.com a trusted source for filters?

With nearly 20 years online and over 50 years of HVAC experience, we offer only high-quality replacement filter from leading brands—backed by real expertise and personalized support.

How to Measure HVAC Filters

To find the correct replacement, measure the length, width, and depth of your existing filter. Most filters are labeled with a nominal size (like 16x24x1), which is a rounded number—actual measurements are often slightly smaller. Accurate sizing ensures a proper fit and helps maintain airflow efficiency.

How to Measure HVAC Filter

Step 1: Remove Old Filter

Turn off your system and remove the existing filter. Look for printed dimensions on the frame—this is usually the nominal size.

Step 2: Measure Actual Size

Use a tape measure to get exact dimensions (length × width × depth). Round down to the nearest 1/8" if needed—example: 15-5/8" × 23-5/8" × 3/4".

Step 3: Match or Order Custom

If your measurements don’t match a standard size, we offer custom filters made to your exact dimensions.

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