20x25x4 M11 MERV 11 Furnace & AC Air Filter by Filters Fast® - 3-Pack

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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®?

1. Once your air filters arrive, gather your supplies including a ladder (if needed,) safety goggles, gloves, a mask, and a disposable bag.
2. Remove the metal grate from your air return.
3. Carefully remove the used air filter and place it immediately and gently into the disposable bag. Then tie the bag sealed.
4. 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?

• 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