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

rtf

Filters

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Original price $ 149.99 - Original price $ 149.99
Original price
$ 149.99
$ 149.99 - $ 149.99
Current price $ 149.99

20x25x1 RTF Washable Reusable Air Filter - Eco-Friendly & Durable

RTF MERV Rated Washable Filter – Elite MERV 8 Air Purification Breathe easier with the RTF Filters Co. MERV Washable Filter, crafted by a leading i...

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Original price $ 149.99 - Original price $ 149.99
Original price
$ 149.99
$ 149.99 - $ 149.99
Current price $ 149.99
Original price $ 179.99 - Original price $ 179.99
Original price
$ 179.99
$ 179.99 - $ 179.99
Current price $ 179.99

20x30x1 RTF Washable Reusable Air Filter - Eco-Friendly & Durable

RTF MERV Rated Washable Filter – Elite MERV 8 Air Purification Breathe easier with the RTF Filters Co. MERV Washable Filter, crafted by a leading i...

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Original price $ 179.99 - Original price $ 179.99
Original price
$ 179.99
$ 179.99 - $ 179.99
Current price $ 179.99
Original price $ 179.99 - Original price $ 179.99
Original price
$ 179.99
$ 179.99 - $ 179.99
Current price $ 179.99

20x32x1 RTF Washable Reusable Air Filter - Eco-Friendly & Durable

RTF MERV Rated Washable Filter – Elite MERV 8 Air Purification Breathe easier with the RTF Filters Co. MERV Washable Filter, crafted by a leading i...

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Original price $ 179.99 - Original price $ 179.99
Original price
$ 179.99
$ 179.99 - $ 179.99
Current price $ 179.99
Original price $ 189.99 - Original price $ 189.99
Original price
$ 189.99
$ 189.99 - $ 189.99
Current price $ 189.99

20x36x1 RTF Washable Reusable Air Filter - Eco-Friendly & Durable

RTF MERV Rated Washable Filter – Elite MERV 8 Air Purification Breathe easier with the RTF Filters Co. MERV Washable Filter, crafted by a leading i...

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Original price $ 189.99 - Original price $ 189.99
Original price
$ 189.99
$ 189.99 - $ 189.99
Current price $ 189.99
Original price $ 199.99 - Original price $ 199.99
Original price
$ 199.99
$ 199.99 - $ 199.99
Current price $ 199.99

20x40x1 RTF Washable Reusable Air Filter - Eco-Friendly & Durable

RTF MERV Rated Washable Filter – Elite MERV 8 Air Purification Breathe easier with the RTF Filters Co. MERV Washable Filter, crafted by a leading i...

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Original price $ 199.99 - Original price $ 199.99
Original price
$ 199.99
$ 199.99 - $ 199.99
Current price $ 199.99
Original price $ 149.99 - Original price $ 149.99
Original price
$ 149.99
$ 149.99 - $ 149.99
Current price $ 149.99

21x21x1 RTF Washable Reusable Air Filter - Eco-Friendly & Durable

RTF MERV Rated Washable Filter – Elite MERV 8 Air Purification Breathe easier with the RTF Filters Co. MERV Washable Filter, crafted by a leading i...

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Original price $ 149.99 - Original price $ 149.99
Original price
$ 149.99
$ 149.99 - $ 149.99
Current price $ 149.99
Original price $ 149.99 - Original price $ 149.99
Original price
$ 149.99
$ 149.99 - $ 149.99
Current price $ 149.99

22x22x1 RTF Washable Reusable Air Filter - Eco-Friendly & Durable

RTF MERV Rated Washable Filter – Elite MERV 8 Air Purification Breathe easier with the RTF Filters Co. MERV Washable Filter, crafted by a leading i...

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Original price $ 149.99 - Original price $ 149.99
Original price
$ 149.99
$ 149.99 - $ 149.99
Current price $ 149.99
Original price $ 179.99 - Original price $ 179.99
Original price
$ 179.99
$ 179.99 - $ 179.99
Current price $ 179.99

24x24x1 RTF Washable Reusable Air Filter - Eco-Friendly & Durable

RTF MERV Rated Washable Filter – Elite MERV 8 Air Purification Breathe easier with the RTF Filters Co. MERV Washable Filter, crafted by a leading i...

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Original price $ 179.99 - Original price $ 179.99
Original price
$ 179.99
$ 179.99 - $ 179.99
Current price $ 179.99
Original price $ 189.99 - Original price $ 189.99
Original price
$ 189.99
$ 189.99 - $ 189.99
Current price $ 189.99

24x30x1 RTF Washable Reusable Air Filter - Eco-Friendly & Durable

RTF MERV Rated Washable Filter – Elite MERV 8 Air Purification Breathe easier with the RTF Filters Co. MERV Washable Filter, crafted by a leading i...

View full details
Original price $ 189.99 - Original price $ 189.99
Original price
$ 189.99
$ 189.99 - $ 189.99
Current price $ 189.99
Original price $ 199.99 - Original price $ 199.99
Original price
$ 199.99
$ 199.99 - $ 199.99
Current price $ 199.99

24x36x1 RTF Washable Reusable Air Filter - Eco-Friendly & Durable

RTF MERV Rated Washable Filter – Elite MERV 8 Air Purification Breathe easier with the RTF Filters Co. MERV Washable Filter, crafted by a leading i...

View full details
Original price $ 199.99 - Original price $ 199.99
Original price
$ 199.99
$ 199.99 - $ 199.99
Current price $ 199.99
Original price $ 199.99 - Original price $ 199.99
Original price
$ 199.99
$ 199.99 - $ 199.99
Current price $ 199.99

25x25x1 RTF Washable Reusable Air Filter - Eco-Friendly & Durable

RTF MERV Rated Washable Filter – Elite MERV 8 Air Purification Breathe easier with the RTF Filters Co. MERV Washable Filter, crafted by a leading i...

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Original price $ 199.99 - Original price $ 199.99
Original price
$ 199.99
$ 199.99 - $ 199.99
Current price $ 199.99
Original price $ 186.99 - Original price $ 186.99
Original price
$ 186.99
$ 186.99 - $ 186.99
Current price $ 186.99

3M Filtrete FAPF02 Compatible Air Purifier Filter MERV 8 (12 pack)

The RTF Filtrete FAPF02 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 $ 186.99 - Original price $ 186.99
Original price
$ 186.99
$ 186.99 - $ 186.99
Current price $ 186.99
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 $ 224.99 - Original price $ 224.99
Original price
$ 224.99
$ 224.99 - $ 224.99
Current price $ 224.99

3M Filtrete FAPF03 Compatible Air Purifier Filter w/ Carbon (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 $ 224.99 - Original price $ 224.99
Original price
$ 224.99
$ 224.99 - $ 224.99
Current price $ 224.99
Original price $ 149.99 - Original price $ 149.99
Original price
$ 149.99
$ 149.99 - $ 149.99
Current price $ 149.99

8x24x1 RTF Washable Reusable Air Filter - Eco-Friendly & Durable

RTF MERV Rated Washable Filter – Elite MERV 8 Air Purification Breathe easier with the RTF Filters Co. MERV Washable Filter, crafted by a leading i...

View full details
Original price $ 149.99 - Original price $ 149.99
Original price
$ 149.99
$ 149.99 - $ 149.99
Current price $ 149.99
Original price $ 149.99 - Original price $ 149.99
Original price
$ 149.99
$ 149.99 - $ 149.99
Current price $ 149.99

8x24x1 RTF Washable Reusable Air Filter - Eco-Friendly & Durable

RTF MERV Rated Washable Filter – Elite MERV 8 Air Purification Breathe easier with the RTF Filters Co. MERV Washable Filter, crafted by a leading i...

View full details
Original price $ 149.99 - Original price $ 149.99
Original price
$ 149.99
$ 149.99 - $ 149.99
Current price $ 149.99
Original price $ 199.99 - Original price $ 199.99
Original price
$ 199.99
$ 199.99 - $ 199.99
Current price $ 199.99

Custom Size MERV 1-4 Fiberglass Panel Basic Air Filters (12 Pack)

Ensure clean air with custom-sized MERV 1-4 Disposable Panel Air Filters, crafted by a leading manufacturer. Perfect for commercial, industrial, an...

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Original price $ 199.99 - Original price $ 199.99
Original price
$ 199.99
$ 199.99 - $ 199.99
Current price $ 199.99
Original price $ 250.99 - Original price $ 350.99
Original price
$ 250.99 - $ 350.99
$ 250.99 - $ 350.99
Current price $ 250.99

Custom Size MERV 10 Pleated Air Filters (12 Pack)

Upgrade your air quality with custom-sized MERV 10 Pleated Air Filters. Tailored to your exact specifications, these filters are perfect for homes,...

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Original price $ 250.99 - Original price $ 350.99
Original price
$ 250.99 - $ 350.99
$ 250.99 - $ 350.99
Current price $ 250.99
Original price $ 271.99 - Original price $ 371.99
Original price
$ 271.99 - $ 371.99
$ 271.99 - $ 371.99
Current price $ 271.99

Custom Size MERV 11 Pleated Air Filters (12 Pack)

Boost your air quality with custom-sized MERV 11 Pleated Air Filters, crafted by a leading manufacturer. Perfect for homes, offices, and industrial...

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Original price $ 271.99 - Original price $ 371.99
Original price
$ 271.99 - $ 371.99
$ 271.99 - $ 371.99
Current price $ 271.99
Original price $ 295.99 - Original price $ 531.99
Original price
$ 295.99 - $ 531.99
$ 295.99 - $ 531.99
Current price $ 295.99

Custom Size MERV 13 Pleated Air Filters (12 Pack)

Elevate your indoor air quality with custom-sized MERV 13 Pleated Air Filters, crafted by a leading manufacturer. Designed for homes, offices, and ...

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Original price $ 295.99 - Original price $ 531.99
Original price
$ 295.99 - $ 531.99
$ 295.99 - $ 531.99
Current price $ 295.99
Original price $ 240.99 - Original price $ 340.99
Original price
$ 240.99 - $ 340.99
$ 240.99 - $ 340.99
Current price $ 240.99

Custom Size MERV 8 Pleated Air Filters (12 Pack)

Custom-sized MERV 8 Pleated Air Filters. Tailored to your exact specifications, these filters are perfect for homes, offices, and industrial spaces...

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Original price $ 240.99 - Original price $ 340.99
Original price
$ 240.99 - $ 340.99
$ 240.99 - $ 340.99
Current price $ 240.99
Original price $ 71.99 - Original price $ 333.99
Original price $ 71.99 - Original price $ 333.99
Original price $ 71.99
$ 57.99 - $ 211.99
$ 57.99 - $ 211.99
Current price $ 57.99

MERV 1-4 Fiberglass Panel Basic Air Filters (12 Pack)

Ensure clean air with MERV 1-4 Disposable Panel Air Filters, crafted by a leading manufacturer. Perfect for commercial, industrial, and residential...

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Original price $ 71.99 - Original price $ 333.99
Original price $ 71.99 - Original price $ 333.99
Original price $ 71.99
$ 57.99 - $ 211.99
$ 57.99 - $ 211.99
Current price $ 57.99
Save up to 45% Save %
Original price $ 124.99 - Original price $ 319.99
Original price $ 124.99 - Original price $ 319.99
Original price $ 124.99
$ 99.99 - $ 255.99
$ 99.99 - $ 255.99
Current price $ 99.99

MERV 10 Pleated Air Filters (12 Pack)

Upgrade your air quality with MERV 10 Pleated Air Filters. Perfect for homes, offices, and industrial spaces, these filters safely improve on MERV ...

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Original price $ 124.99 - Original price $ 319.99
Original price $ 124.99 - Original price $ 319.99
Original price $ 124.99
$ 99.99 - $ 255.99
$ 99.99 - $ 255.99
Current price $ 99.99
Save up to 20% Save %
Original price $ 148.99 - Original price $ 341.99
Original price $ 148.99 - Original price $ 341.99
Original price $ 148.99
$ 119.99 - $ 273.99
$ 119.99 - $ 273.99
Current price $ 119.99

MERV 11 Pleated Air Filters (12 Pack)

Boost your air quality with MERV 11 Pleated Air Filters, crafted by a leading manufacturer. Perfect for homes, offices, and industrial spaces, thes...

View full details
Original price $ 148.99 - Original price $ 341.99
Original price $ 148.99 - Original price $ 341.99
Original price $ 148.99
$ 119.99 - $ 273.99
$ 119.99 - $ 273.99
Current price $ 119.99
Save up to 20% Save %

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

rtf 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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