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actual size

*Please be advised that some larger filters require an additional cost (see dropdown window above).

  • Size Actual Dimension
  • 08x08x1 8" x 8" x 0.75"
  • 10x10x1 9.75" x 9.75" x 0.75"
  • 10x20x1 9.75" x 19.75" x 0.75"
  • 10x24x1 9.5" x 23.5" x 0.75"
  • 12x12x1 11.75" x 11.75" x 0.75"
  • 12x18x1 11.75" x 17.75" x 0.75"
  • 12x20x1 11.75" x 19.75" x 0.75"
  • 12x24x1 11.75" x 23.75" x 0.75"
  • 12x25x1 11.75" x 24.75" x 0.75"
  • 12x30x1 11.75" x 29.75" x 0.75"
  • 12x36x1 11.5" x 35.5" x 0.75"
  • 13x22x1 13" x 21.5" x 0.75"
  • 14x14x1 13.75" x 13.75" x 0.75"
  • 14x15.5x1 14" x 15.5" x 0.75"
  • 14x18x1 13.75" x 17.75" x 0.75"
  • 14x20x1 13.75" x 19.75" x 0.75"
  • 14x24x1 13.75" x 23.75" x 0.75"
  • 14x25x1 13.75" x 24.75" x 0.75"
  • 14x30x1 13.75" x 29.75" x 0.75"
  • 15x20x1 14.75" x 19.75" x 0.75"
  • 16x16x1 15.75" x 15.75" x 0.75"
  • 16x20x1 15.75" x 19.75" x 0.75"
  • 16x24x1 15.75" x 23.75" x 0.75"
  • 16x25x1 15.75" x 24.75" x 0.75"
  • 16x30x1 15.75" x 29.75" x 0.75"
  • *16x32x1 15.5" x 31.5" x 0.75"
  • 17.5x23.5x1 17.5" x 23.5" x 0.75"
  • 18x18x1 17.75" x 17.75" x 0.75"
  • 18x20x1 17.75" x 19.75" x 0.75"
  • 18x22x1 17.75" x 21.75" x 0.75"
  • 18x24x1 17.75" x 23.75" x 0.75"
  • 18x25x1 17.75" x 24.75" x 0.75"
  • 18x30x1 17.75" x 29.75" x 0.75"
  • 20x20x1 19.75" x 19.75" x 0.75"
  • 20x21.5x1 20" x 21.5" x 0.75"
  • 20x21x1 19.75" x 20.75" x 0.75"
  • 20x22x1 19.75" x 21.75" x 0.75"
  • 20x24x1 19.75" x 23.75" x 0.75"
  • 20x25x1 19.75" x 24.75" x 0.75"
  • 20x30x1 19.875" x 29.875" x 0.75"
  • 21.5x23.2x1 21.5" x 23.25" x 0.75"
  • *22x22x1 21.75" x 21.75" x 0.75"
  • 23.5x23.5x1 23.5" x 23.5" x 0.75"
  • 24x24x1 23.75" x 23.75" x 0.75"
  • 24x30x1 23.875" x 29.875" x 0.75"
  • 25x25x1 24.75" x 24.75" x 0.75"
  • *30x30x1 29.5" x 29.5" x 0.75"
  • *30x36x1 29.5" x 35.5" x 0.75"

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Made In USA Icon

MERV 11 Filters Fast® 1" AC and Furnace Air Filters - 6-Pack

FFM11 6pk

Only $11.83 per Filter
Retail: $80.99 /ea
You Save: 12%
As low as
Retail: $80.99
You Save: 12%
M11 6pk Sizes - Some Sizes Have Additional Costs :
Ships in 1 to 2 business days.
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The Filters Fast® FFM11 6-Pack is a set of MERV 11 AC and Furnace Air filters that effectively reduce pollen, dust, pet dander, mold spores, dust mites and other allergens from indoor air. Removing these airborne particles can help improve allergies and alleviate sinus irritation that can cause watery eyes, itchy throat, coughing, and sneezing. The MERV 11 filter media is constructed with spun micro-fiber that also will not retain moisture, which can lead to microbial growth. Aside from the health benefits, these HVAC filters will also extend the life of your heating and cooling system by making it work more efficiently.


  • Brand: Filters Fast®
  • Part Number: FFM11
  • Pack Size: 6 Filters
  • MERV Rating: 11
  • Filter Type: Pleated
  • Material: Synthetic
  • Replace every 1 - 3 months
  • For residential use only
  • Note: These filters do not contain fiberglass.
  • FFM11 Specification Data Sheet

Available Sizes:

The Filters Fast® FFM11 6-Pack 1" Air Filter is available in the following sizes:

Nominal Size Actual Size Alternate Part Number
08x08x1 Air Filter 8.0x8.0x.75 PF11.010808A6PFF
10x10x1 Air Filter 9.75x9.75x.75 PR11.011010PFF
10x16x1 Air Filter 9.75x15.75x.75 PF11.0110166PFF
10x20x1 Air Filter 9.75x19.75x.75 PR11.011020PFF
10x24x1 Air Filter 9.75x23.75x.75 PR11.011024PFF
10x25x1 Air Filter 9.75x24.75x.75 PF11.0110256PFF
10x30x1 Air Filter 9.75x29.75x.75 PF11.0110306PFF
12x12x1 Air Filter 11.75x11.75x.75 PR11.011212PFF
12x15x1 Air Filter 11.75x14.75x.75 PF11.0112156PFF
12x16x1 Air Filter 11.75x15.75x.75 PF11.0112166PFF
12x18x1 Air Filter 11.75x17.75x.75 PR11.011218PFF
12x20x1 Air Filter 11.75x19.75x.75 PR11.011220PFF
12x22x1 Air Filter 11.75x21.75x.75 PF11.0112226PFF
12x30x1 Air Filter 11.75x29.75x.75 PR11.011230PFF
14x14x1 Air Filter 13.75x13.75x.75 PR11.011414PFF
14x18x1 Air Filter 13.75x17.75x.75 PR11.011418PFF
14x20x1 Air Filter 13.75x19.75x.75 PR11.011420PFF
14x22x1 Air Filter 14x22x.75 PF11.011422A6P
14x24x1 Air Filter 13.75x23.75x.75 PR11.011424PFF
14x25x1 Air Filter 13.75x24.75x.75 PR11.011425PFF
14x30x1 Air Filter 13.75x29.75x.75 PR11.011430PFF
15x20x1 Air Filter 14.75x19.75x.75 PR11.011520PFF
15x25x1 Air Filter 14.75x24.75x.75 PF11.0115256PFF
15x30x1 Air Filter 14.75x29.75x.75 PF11.0115306PFF
16x16x1 Air Filter 15.75x15.75x.75 PR11.011616PFF
16x18x1 Air Filter 15.75x17.75x.75 PF11.0116186PFF
16x20x1 Air Filter 15.75x19.75x.75 PR11.011620PFF
16x24x1 Air Filter 15.75x23.75x.75 PR11.011624PFF
16x25x1 Air Filter 15.75x24.75x.75 PR11.011625PFF, PF1625
16x30x1 Air Filter 15.75x29.75x.75 PR11.011630PFF
*16x32x1 Air Filter 15.75x31.75x.75 PR11.011632PFF
17.5x21x1 Air Filter 17.5x21x.75 PF11.0117.521A6P
18x18x1 Air Filter 17.75x17.75x.1 PR11.011818PFF
18x20x1 Air Filter 17.75x19.75x.75 PR11.011820PFF
18x22x1 Air Filter 17.75x21.75x.75 PR11.011822PFF
18x24x1 Air Filter 17.75x23.75x.75 PR11.011824PFF
18x25x1 Air Filter 17.75x24.75x.75 PR11.011825PFF
18x30x1 Air Filter 17.75x29.75x.75 PR11.011830PFF
20x20x1 Air Filter 19.75x19.75x.75 PR11.012020PFF
20x21.5x1 Air Filter 19.75x21.5x.75 PF11.012021.5A6PFF
20x22x1 Air Filter 19.75x21.75x.75 PR11.012022PFF
20x24x1 Air Filter 19.75x23.75x.75 PR11.012024PFF
20x25x1 Air Filter 19.75x24.75x.75 PR11.012025PFF
20x26x1 Air Filter 20x26x.75 PF11.012026A6P
20x30x1 Air Filter 19.75x29.75x.75 PR11.012030PFF
*22x22x1 Air Filter 21.75x21.75x.75 PR11.012222PFF
22x24x1 Air Filter 22x24x.75 PF11.012224A6PFF
24x24x1 Air Filter 23.75x23.75x.75 PR11.012424PFF
24x30x1 Air Filter 23.75x29.75x.75 PR11.012430PFF
25x25x1 Air Filter 24.75x24.75x.75 PR11.012525PFF
28x30x1 Air Filter 27.5x29.5x.75 PF11.0128306P
*30x36x1 Air Filter 29.5" x35.5" x.75" PR11.013036PFF

*Additional Handling Fee: Please be advised that some larger filters require an additional cost to offset high shipping charges.

Custom Sizes:

If you don't see your size, order a custom made air filter! Custom made air filters do not come individually wrapped.

Additional Resources:

For more information on air filter efficiency ratings, check out our resources below!


Compatible Parts:

The MERV 11 Filters Fast® 1" AC and Furnace Air Filters - 6-Pack is the correct replacement for the following part numbers:

  • DuPont Gold
  • DuPont Maximum
  • DuPont Platinum
  • DuPont ProClear
  • DuPont Ultra


Customer Reviews:

Total Reviews: 63 | Average Rating: 4.65 / 5.0

Nice filters at a great price

Collected by

The filters are Good. I change my filters every 2 months. I get auto ship twice a year so I never run out. Quality filter and service

Collected by

These filters are great, economical filters. We change them out every month and our house is MUCH less dusty than before. Also our heat/AC are much more efficient. We so enjoy using the auto ship service. The filters come on time each quarter and it is so handy. We have a very common size and it is so hard to have three each time we change them if we shop locally. We love Filtersfast and these filters.

Collected by

Great quality at an affordable price. Very satisfied.

Collected by

I did already.

Collected by

These filters are nominally the right size but they didn't quite fit properly in my holder.

Collected by

Was sent wrong filters.The picture you show is not what you sent to me .They were cheaply made .Not what I paid for.Bad Bad

Collected by

Now that we are running the A/C almost constantly, I felt it was important to have good filters in the furnace. These appear to be functioning very well. And with a subscription to have the filters delivered, I don't have to worry about not changing them on time.

Collected by

Good product and fast shipping

Collected by

Super deal

Collected by

great product along with the service

Collected by

The filter is leaving at odor in the house I donít like it. I would prefer the filtrate filter and I need the blue one

Collected by

God produkt bit expensive

Collected by

Fast delivery!

Collected by

This is the best A/C filter I have used. It does the job and clears the air.

Collected by

Fine filtersÖgreat price

Collected by

I've been buying these for the last year or so but will probably switch to another brand. After about 10 days they start causing a whistling sound. I pull the filter out and it's clean, not sure why. Other brands don't so this.

Collected by

So far so good great price and fits my system.

Collected by


Collected by

The filters are of good quality and work very well.

Collected by