*Please be advised that some larger filters require an additional cost (see dropdown window above).
- Size Actual Dimension
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12x24x4 11.375" x 23.375" x 3.625"
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16x20x4 15.5" x 19.5" x 3.625"
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16x25x4 15.5" x 24.5" x 3.625"
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18x24x4 17.375" x 23.375" x 3.625"
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20x20x4 19.5" x 19.5" x 3.625"
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20x24x4 19.375" x 23.375" x 3.625"
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20x25x4 19.375" x 24.375" x 3.625"
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24x24x4 23.375" x 23.375" x 3.625"
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25x29x4 24.375" x 28.375" x 3.625"
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The 4" MERV 11 Furnace & AC Air Filter by Filters Fast® - 3-Pack is a set of MERV 11 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 electrostatically charged and 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.
Note: These filters do not contain fiberglass.
Specifications:
- Brand: Filters Fast®
- Part Number: FF4M11
- Pack Size: 3
- Filter Life: 6 - 12 Months
- MERV Rating: 11
- Filter Type: Electrostatic pleated
- Material: Synthetic
- For commercial and residential use
Available Sizes:
The 4" MERV 11 Furnace & AC Air Filter by Filters Fast® is available in the following sizes:
Nominal Size | Actual Size | Alternate Part Number |
---|---|---|
12x24x4 Air Filter | 11.375x23.375x3.625 | PF11.0412243PFF |
16x20x4 Air Filter | 15.375x19.375x3.625 | PF11.0416203PFF |
16x25x4 Air Filter | 15.375x24.375x3.625 | PF11.0416253PFF |
18x24x4 Air Filter | 17.375x23.375x3.625 | PF11.0418243PFF |
20x20x4 Air Filter | 19.375x19.375x3.625 | PF11.0420203PFF |
20x24x4 Air Filter | 19.375x23.375x3.625 | PF11.0420243PFF |
20x25x4 Air Filter | 19.375x24.375x3.625 | PF11.0420253PFF |
24x24x4 Air Filter | 23.375x23.375x3.625 | PF11.0424243PFF |
25x29x4 Air Filter | 24.375x28.375x3.625 | PF11.0425293PFF |
Custom Sizes:
- If you don' t see your size, order a custom made air filter! Custom made air filters do not come individually wrapped.
How do you install the 4" MERV 11 Furnace & AC Air Filter by Filters Fast®?
- Once your air filters arrive, gather your supplies including a ladder (if needed,) safety goggles, gloves, a mask, and a disposable bag.
- Remove the metal grate from your air return.
- Carefully remove the used air filter and place it immediately and gently into the disposable bag. Then tie the bag sealed.
- Place the new air filter in place of the filter you just removed and replace the metal grille.
How often should you replace the 4" MERV 11 Furnace & AC Air Filter by Filters Fast®?
- Changing your 4" MERV 11 Furnace & AC Air Filter by Filters Fast® is a very quick and easy process that should be done once every six to twelve months.
What contaminants does the 4" MERV 11 Furnace & AC Air Filter by Filters Fast® reduce?
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The 4" MERV 11 Furnace & AC Air Filter by Filters Fast® is a MERV 11 air filter, which means that it reduces the following contaminants:
- Dust
- Pollen
- Mold Spores
- Pet Dander
- Dust Mites
- Smoke & Smog
- Other Common Airborne Allergens
Compatible Parts:
The 4" MERV 11 Furnace & AC Air Filter by Filters Fast® - 3-Pack is the correct replacement for the following part numbers:
Customer Reviews:
Great product but a delayed delivery
Collected by Trustpilot.comDoes the job as described, no problems over the 3-4 years in new ac system.
Collected by Trustpilot.comGood srevice
Collected by Trustpilot.comFast and good quality
Collected by Trustpilot.comGreat used your product for years.
Collected by Trustpilot.comPay close attention to the specs as these are not the full size. Much smaller
Collected by Trustpilot.comThanks for your speedy delivery.
Collected by Trustpilot.comGreat service - good filters
Collected by Trustpilot.comExcellent for dust control
Collected by Trustpilot.comQuick and dependable! The filter club makes it easy to have filters on hand.
Collected by Trustpilot.comQuality filters @ affordable prices and good discounts throughout the year!
Collected by Trustpilot.comExcellent products, comparable to the brand names in performance yet cost less
Collected by Trustpilot.comThey are not 4” thick. The actual dimension is 3 1/2”.
Collected by Trustpilot.comWork great! Thanks
Collected by Trustpilot.comGood product
Collected by Trustpilot.comI bought the size filter that my system uses but found they do not fit in my filter housing because the filters are too small. Probably a mistake on my part in not confirming that it was designed for my application. The filters appear to be of good quality, but are of no use to me. i need to investigate a return.
Collected by Trustpilot.comIt is a good product for my forced air heating.
Collected by Trustpilot.comRecommend by manufacturer
Collected by Trustpilot.comComes delivered to my home and does a good job.
Collected by Trustpilot.comAll good, will provide farther information after use.
Collected by Trustpilot.comProduct Availability
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