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Basic Fiberglass AC Filters & Furnace Filters

Premium HVAC Filters for Every Need

RememberTheFilter.com offers a wide range of standard fiberglass and polyester HVAC filters from trusted brands like AAF Flanders and KOCH, perfect for residential, commercial, and industrial use. These cost-effective, single-piece filters—like EZ Flow and KOCH Disposable Panel Filters—provide easy installation, effective dust and debris protection, and optimal airflow with MERV 1-4 ratings. Shop our selection to enhance air quality and safeguard your HVAC system today.

Boost Performance with Quality Filters

Regularly replacing your HVAC filters extends system lifespan, improves energy efficiency, and reduces utility costs—all while maintaining cleaner indoor air. At RememberTheFilter.com, we make it simple with a user-friendly store, high-quality options, and free shipping on every order. Upgrade your home or business with our reliable filters and experience the difference trusted craftsmanship delivers.

Filters

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$ 114.99 - $ 124.99
$ 114.99 - $ 124.99
$ 114.99 - $ 124.99
$ 114.99

AAF Flanders Nested Glass EZ-Green Filters (24 Filters)

At RememberTheFilter.com, your trusted authorized dealer for top-tier air filtration solutions, we’re proud to offer the AAF Flanders Nested Glass ...

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$ 114.99 - $ 124.99
$ 114.99 - $ 124.99
$ 114.99 - $ 124.99
$ 114.99
Save up to 45% Save %
$ 71.99 - $ 333.99
$ 71.99 - $ 333.99
$ 71.99
$ 57.99 - $ 211.99
$ 57.99 - $ 211.99
$ 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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$ 71.99 - $ 333.99
$ 71.99 - $ 333.99
$ 71.99
$ 57.99 - $ 211.99
$ 57.99 - $ 211.99
$ 57.99
Save up to 45% Save %
$ 59.99 - $ 299.99
$ 59.99 - $ 299.99
$ 59.99 - $ 299.99
$ 59.99

Koch Disposable Fiberglass Panel (12 Filters)

Disposable Panel Filters for Commercial, Industrial & Residential Use KOCH Disposable Fiberglass Panel Filters are versatile and suitable for ...

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$ 59.99 - $ 299.99
$ 59.99 - $ 299.99
$ 59.99 - $ 299.99
$ 59.99
$ 69.99 - $ 309.99
$ 69.99 - $ 309.99
$ 69.99 - $ 309.99
$ 69.99

Koch Disposable Polyester Panel (12 Filters)

Disposable Panel Filters for Commercial, Industrial & Residential Use KOCH Disposable Polyester Panel Filters are versatile and suitable for a...

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$ 69.99 - $ 309.99
$ 69.99 - $ 309.99
$ 69.99 - $ 309.99
$ 69.99
16x25x1 Koch Disposable Fiberglass Panel 274-160-250 (12 Filters)
$ 61.99 - $ 61.99
$ 61.99
$ 61.99 - $ 61.99
$ 61.99

16x25x1 Koch Disposable Fiberglass Panel 274-160-250 (12 Filters)

Disposable Panel Filters for Commercial, Industrial & Residential Use KOCH Disposable Fiberglass Panel Filters are versatile and suitable for ...

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$ 61.99 - $ 61.99
$ 61.99
$ 61.99 - $ 61.99
$ 61.99
16x20x1 Koch Disposable Fiberglass Panel 274-160-200 (12 Filters)
$ 60.99 - $ 60.99
$ 60.99
$ 60.99 - $ 60.99
$ 60.99

16x20x1 Koch Disposable Fiberglass Panel 274-160-200 (12 Filters)

Disposable Panel Filters for Commercial, Industrial & Residential Use KOCH Disposable Fiberglass Panel Filters are versatile and suitable for ...

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$ 60.99 - $ 60.99
$ 60.99
$ 60.99 - $ 60.99
$ 60.99
16x24x1 Koch Disposable Fiberglass Panel 274-160-240 (12 Filters)
$ 61.99 - $ 61.99
$ 61.99
$ 61.99 - $ 61.99
$ 61.99

16x24x1 Koch Disposable Fiberglass Panel 274-160-240 (12 Filters)

Disposable Panel Filters for Commercial, Industrial & Residential Use KOCH Disposable Fiberglass Panel Filters are versatile and suitable for ...

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$ 61.99 - $ 61.99
$ 61.99
$ 61.99 - $ 61.99
$ 61.99
Flanders AAF Basic Filter Flanders Precisionaire EZ-Flow II Filters (12 Pack)
$ 199.99 - $ 199.99
$ 199.99
$ 199.99 - $ 199.99
$ 199.99

Custom Size AAF Flanders EZ-Flow Basic Fiberglass Filters (12 Pack)

Discover the custom-sized EZ Flow II Air Filter, designed for efficient and economical air filtration in residential and light commercial HVAC syst...

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$ 199.99 - $ 199.99
$ 199.99
$ 199.99 - $ 199.99
$ 199.99
24x30x1 Koch Disposable Polyester Panel 284-240-300 (12 Filters)
$ 97.99 - $ 97.99
$ 97.99
$ 97.99 - $ 97.99
$ 97.99

24x30x1 Koch Disposable Polyester Panel 284-240-300 (12 Filters)

Disposable Panel Filters for Commercial, Industrial & Residential Use KOCH Disposable Polyester Panel Filters are versatile and suitable for a...

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$ 97.99 - $ 97.99
$ 97.99
$ 97.99 - $ 97.99
$ 97.99
16x25x1 Koch Disposable Polyester Panel 284-160-250 (12 Filters)
$ 71.99 - $ 71.99
$ 71.99
$ 71.99 - $ 71.99
$ 71.99

16x25x1 Koch Disposable Polyester Panel 284-160-250 (12 Filters)

Disposable Panel Filters for Commercial, Industrial & Residential Use KOCH Disposable Polyester Panel Filters are versatile and suitable for a...

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$ 71.99 - $ 71.99
$ 71.99
$ 71.99 - $ 71.99
$ 71.99
16x30x1 Koch Disposable Fiberglass Panel 274-160-300 (12 Filters)
$ 87.99 - $ 87.99
$ 87.99
$ 87.99 - $ 87.99
$ 87.99

16x30x1 Koch Disposable Fiberglass Panel 274-160-300 (12 Filters)

Disposable Panel Filters for Commercial, Industrial & Residential Use KOCH Disposable Fiberglass Panel Filters are versatile and suitable for ...

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$ 87.99 - $ 87.99
$ 87.99
$ 87.99 - $ 87.99
$ 87.99
16x16x1 Koch Disposable Fiberglass Panel 274-160-160 (12 Filters)
$ 89.99 - $ 89.99
$ 89.99
$ 89.99 - $ 89.99
$ 89.99

16x16x1 Koch Disposable Fiberglass Panel 274-160-160 (12 Filters)

Disposable Panel Filters for Commercial, Industrial & Residential Use KOCH Disposable Fiberglass Panel Filters are versatile and suitable for ...

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$ 89.99 - $ 89.99
$ 89.99
$ 89.99 - $ 89.99
$ 89.99
$ 218.99 - $ 364.99
$ 218.99 - $ 364.99
$ 218.99 - $ 364.99
$ 218.99

Custom Size Koch Disposable Panel (12 Filters)

Disposable Panel Filters for Commercial, Industrial & Residential Use KOCH Disposable Panel Filters are versatile and suitable for a wide rang...

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$ 218.99 - $ 364.99
$ 218.99 - $ 364.99
$ 218.99 - $ 364.99
$ 218.99
18x20x1 Koch Disposable Polyester Panel 284-180-200 (12 Filters)
$ 71.99 - $ 71.99
$ 71.99
$ 71.99 - $ 71.99
$ 71.99

18x20x1 Koch Disposable Polyester Panel 284-180-200 (12 Filters)

Disposable Panel Filters for Commercial, Industrial & Residential Use KOCH Disposable Polyester Panel Filters are versatile and suitable for a...

View full details
$ 71.99 - $ 71.99
$ 71.99
$ 71.99 - $ 71.99
$ 71.99
14x20x1 Koch Disposable Polyester Panel 284-140-200 (12 Filters)
$ 69.99 - $ 69.99
$ 69.99
$ 69.99 - $ 69.99
$ 69.99

14x20x1 Koch Disposable Polyester Panel 284-140-200 (12 Filters)

Disposable Panel Filters for Commercial, Industrial & Residential Use KOCH Disposable Polyester Panel Filters are versatile and suitable for a...

View full details
$ 69.99 - $ 69.99
$ 69.99
$ 69.99 - $ 69.99
$ 69.99
20x25x2 Koch Disposable Fiberglass Panel 276-200-250 (12 Filters)
$ 214.99 - $ 214.99
$ 214.99
$ 214.99 - $ 214.99
$ 214.99

20x25x2 Koch Disposable Fiberglass Panel 276-200-250 (12 Filters)

Disposable Panel Filters for Commercial, Industrial & Residential Use KOCH Disposable Fiberglass Panel Filters are versatile and suitable for ...

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$ 214.99 - $ 214.99
$ 214.99
$ 214.99 - $ 214.99
$ 214.99
20x25x1 Koch Disposable Fiberglass Panel 274-200-250 (12 Filters)
$ 72.99 - $ 72.99
$ 72.99
$ 72.99 - $ 72.99
$ 72.99

20x25x1 Koch Disposable Fiberglass Panel 274-200-250 (12 Filters)

Disposable Panel Filters for Commercial, Industrial & Residential Use KOCH Disposable Fiberglass Panel Filters are versatile and suitable for ...

View full details
$ 72.99 - $ 72.99
$ 72.99
$ 72.99 - $ 72.99
$ 72.99
20x22-1/4x1 Koch Disposable Fiberglass Panel 274-200-222 (12 Filters)
$ 94.99 - $ 94.99
$ 94.99
$ 94.99 - $ 94.99
$ 94.99

20x22-1/4x1 Koch Disposable Fiberglass Panel 274-200-222 (12 Filters)

Disposable Panel Filters for Commercial, Industrial & Residential Use KOCH Disposable Fiberglass Panel Filters are versatile and suitable for ...

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$ 94.99 - $ 94.99
$ 94.99
$ 94.99 - $ 94.99
$ 94.99
20x20x1 Koch Disposable Fiberglass Panel 274-200-200 (12 Filters)
$ 60.99 - $ 60.99
$ 60.99
$ 60.99 - $ 60.99
$ 60.99

20x20x1 Koch Disposable Fiberglass Panel 274-200-200 (12 Filters)

Disposable Panel Filters for Commercial, Industrial & Residential Use KOCH Disposable Fiberglass Panel Filters are versatile and suitable for ...

View full details
$ 60.99 - $ 60.99
$ 60.99
$ 60.99 - $ 60.99
$ 60.99
18x20x1 Koch Disposable Fiberglass Panel 274-180-200 (12 Filters)
$ 84.99 - $ 84.99
$ 84.99
$ 84.99 - $ 84.99
$ 84.99

18x20x1 Koch Disposable Fiberglass Panel 274-180-200 (12 Filters)

Disposable Panel Filters for Commercial, Industrial & Residential Use KOCH Disposable Fiberglass Panel Filters are versatile and suitable for ...

View full details
$ 84.99 - $ 84.99
$ 84.99
$ 84.99 - $ 84.99
$ 84.99
14x30x1 Koch Disposable Fiberglass Panel 274-140-300 (12 Filters)
$ 97.99 - $ 97.99
$ 97.99
$ 97.99 - $ 97.99
$ 97.99

14x30x1 Koch Disposable Fiberglass Panel 274-140-300 (12 Filters)

Disposable Panel Filters for Commercial, Industrial & Residential Use KOCH Disposable Fiberglass Panel Filters are versatile and suitable for ...

View full details
$ 97.99 - $ 97.99
$ 97.99
$ 97.99 - $ 97.99
$ 97.99
14x24x1 Koch Disposable Fiberglass Panel 274-140-240 (12 Filters)
$ 59.99 - $ 59.99
$ 59.99
$ 59.99 - $ 59.99
$ 59.99

14x24x1 Koch Disposable Fiberglass Panel 274-140-240 (12 Filters)

Disposable Panel Filters for Commercial, Industrial & Residential Use KOCH Disposable Fiberglass Panel Filters are versatile and suitable for ...

View full details
$ 59.99 - $ 59.99
$ 59.99
$ 59.99 - $ 59.99
$ 59.99
14x14x1 Koch Disposable Fiberglass Panel 274-140-140 (12 Filters)
$ 59.99 - $ 59.99
$ 59.99
$ 59.99 - $ 59.99
$ 59.99

14x14x1 Koch Disposable Fiberglass Panel 274-140-140 (12 Filters)

Disposable Panel Filters for Commercial, Industrial & Residential Use KOCH Disposable Fiberglass Panel Filters are versatile and suitable for ...

View full details
$ 59.99 - $ 59.99
$ 59.99
$ 59.99 - $ 59.99
$ 59.99
12x36x1 Koch Disposable Fiberglass Panel 274-120-360 (12 Filters)
$ 93.99 - $ 93.99
$ 93.99
$ 93.99 - $ 93.99
$ 93.99

12x36x1 Koch Disposable Fiberglass Panel 274-120-360 (12 Filters)

Disposable Panel Filters for Commercial, Industrial & Residential Use KOCH Disposable Fiberglass Panel Filters are versatile and suitable for ...

View full details
$ 93.99 - $ 93.99
$ 93.99
$ 93.99 - $ 93.99
$ 93.99

Your Trusted Source For Basic Fiberglass Filters

We offer a complete selection of high-performance Basic Fiberglass 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 Basic Fiberglass 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 Basic Fiberglass filters online? Your purchase is backed by our Filter Fit Guarantee™.

Free Delivery

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

Highly Rated Basic Fiberglass Filters

Basic Fiberglass AC Filters & Furnace Filters from leading manufactuerers.

Have questions about Basic Fiberglass Filters?

What are Basic Fiberglass filters designed for?

Basic Fiberglass 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 Basic Fiberglass are right for my system?

The best way to determine if Basic Fiberglass 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 Basic Fiberglass filters used in residential or commercial systems?

Basic Fiberglass 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 Basic Fiberglass filters be replaced or maintained?

Replacement schedules for Basic Fiberglass 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 Basic Fiberglass?

Basic Fiberglass 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 Basic Fiberglass filters made in the USA?

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

What makes RememberTheFilter.com a trusted source for Basic Fiberglass filters?

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

What MERV Rating Is Right for You?

MERV (Minimum Efficiency Reporting Value) measures how well an air filter captures particles. A higher number means better filtration—but it must still be compatible with your HVAC system. Here's a breakdown to help you choose the right filter for your home or business.

MERV 1–4

Basic protection. Captures larger particles like dust, lint, and pollen. Minimal airflow resistance. Best for older systems or basic residential use.

✔ Highest airflow
✘ Does not trap fine particles

MERV 8

Great balance of airflow and filtration. Captures mold spores, dust mites, pet dander, and pollen. Most common choice for residential HVAC systems.

✔ Good airflow
✔ Effective for everyday air quality needs

MERV 10

Enhanced dust-holding capacity and improved particle removal compared to MERV 8. Traps finer particles like mold spores, hair spray, and fabric fibers.

✔ More efficient than MERV 8
✔ Still maintains strong airflow

MERV 11

Captures smaller particles like auto emissions, smoke, and some airborne bacteria. Ideal for homes with pets or allergy concerns. Moderate impact on airflow.

✔ Great for allergies
✘ May reduce airflow in older systems

MERV 13

Highest residential-grade filtration. Captures airborne bacteria, tobacco smoke, and fine particles. Recommended for asthma, smoke exposure, or medical-grade needs.

✔ Best indoor air quality
✘ Not suitable for all systems without airflow evaluation

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.

Why Trust RememberTheFilter.com?

With nearly 20 years online and over 50 years of combined HVAC filter experience, we’re more than just a retailer—we’re filtration experts. As a proud member of the National Air Filtration Association (NAFA), we serve residential, commercial, and government customers across the U.S. Our filters are made in America and sourced from leading manufacturers like AAF Flanders, Koch Filter, and more.

We believe in clean air, fair prices, and helping people—not algorithms.

  • ✅ Nearly 20 years online helping homeowners and businesses nationwide
  • ✅ 50+ years of combined HVAC filtration experience
  • ✅ Member of NAFA – National Air Filtration Association
  • ✅ Made in the USA – filters from AAF Flanders, Koch, and more
  • ✅ Exact Filters® – custom built to your specs, down to 1/8"
  • ✅ Trusted by schools, clinics, and commercial buildings across the U.S.

Need help?

Our customer service team is here to help you with any questions or concerns.

We're committed to providing excellent support.
+1 (866) 469-8556 support@rememberthefilter.com Text us

Phone Support Hours: Mon-Fri 8AM-5PM PDT

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