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Note: The pleats inside the FiltersFast FF4M11 have changed from white to blue.

The FiltersFast FF4M11 air filter can be used in the following applications:

• Commercial
• Residential

Price listed is for three 4-inch filters.

FiltersFast air filters are an economical alternative if you're looking for a quality air filter without paying a premium price! This three pack of 4 inch air filters comes in a variety of sizes and are a cost effective upgrade from simple fiberglass or poly pleated filters.

These 4 inch furnace filters effectively reduce pollen, dust, pet dander, mold spores, dust mites and other allergens from your indoor air. Removing these airborne particles can help improve allergies and alleviate sinus irritation that can cause watery eyes, itchy throat, coughing, and sneezing. Aside from the health benefits, having these FiltersFast MERV 11 furnace filters in your home will also extend the life of your heating and cooling system by making it work more efficiently.

FiltersFast 4-Inch Air Filters MERV 11 - 3-pack Specifications:

• 3 pack
• MERV 11 filters
• 11 blue pleats per linear foot for greater surface area
• Replace filter every 3 months for optimum performance
• Reduces pollen, dust, dander, spores, dust mites and other allergens

The FiltersFast 4 inch Air Filters are available in the following sizes:

Prices listed are for a 3-pack of filters.

Don't see the size you need? Let us know, we can special order it for you! Email us at [email protected]

The chart below will show you what you can remove with a MERV 13 air filter, a MERV 11 air filter, or a MERV 8 air filter.