- Size Actual Dimension
-
12x24x4 11.375" x 23.375" x 3.625"
-
16x20x4 15.5" x 19.5" x 3.625"
-
16x25x4 15.5" x 24.5" x 3.625"
-
18x24x4 17.375" x 23.375" x 3.625"
-
20x20x4 19.5" x 19.5" x 3.625"
-
20x24x4 19.375" x 23.375" x 3.625"
-
20x25x4 19.5" x 24.5" x 3.625"
-
24x24x4 23.375" x 23.375" x 3.625"
-
25x29x4 24.375" x 28.375" x 3.625"
Product Availability
Please provide your e-mail address below to receive a notification when this product becomes available:
XThanks! We'll send you a notification when this product is available!
Sign up for the Home Filter Club in checkout. You choose how often you want your filter, and we take care of the rest.
Contact [email protected] to gain access to case quantity discounts, account management and terms!
Merv 13 FiltersFast 1" Allergy AC and Furnace Filters 6-Pack
True HEPA Allergy Relief Desktop & Small Room Air Purifier
Comfortable, Reusable Particulate Respirator Facemask by RZ Mask - Meets N95 & N99 StandardsThe FiltersFast FF4M11 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.
FiltersFast FF4M11 3-Pack Filter Specifications:
- Part Number: FF4M11
- Pack Size: 3 Filters
- MERV Rating: 11
- Filter Type: Electrostatic pleated
- Material: Synthetic
- Replace every 6-12 months
- For commercial and residential use
- Note: These filters do not contain fiberglass.
The FiltersFast FF4M11 3-Pack 4" Air Filter 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 |
NOTE: If you don't see your size, order a custom made air filter! Custom made air filters do not come individually wrapped. Please be advised that some larger filters require an additional cost (see dropdown window above).
Additional Resources:
For more information on air filter efficiency ratings, check out our resources below!
Customer Reviews:
Never have a problem, fast accurate and quality.
Collected by Trustpilot.comWell worth ordering, efficient.
Collected by Trustpilot.comBetter filters than you can buy just about anywhere for this price. Fast service, fast shipping, good price. What more can you ask for?
Collected by Trustpilot.comQuality is at least as good as anything at the big box stores, and price is better. It's a great value, and it makes responding to the message on my thermostat much easier having the filters on hand and available when needed.
Collected by Trustpilot.comFast friendly done
Collected by Trustpilot.comFast fast fast.
Collected by Trustpilot.comA tad bit smaller than original but still fits
Collected by Trustpilot.comHave used them for years and am well pleased. Reasonably priced.
Collected by Trustpilot.comThey work good so far
Collected by Trustpilot.comgreat filters, just what I needed
Collected by Trustpilot.comGreat Company, thumbs up !!!!!!
Collected by Trustpilot.comThese are a great value for the money. The air quality is immediately better when we put them in.
Collected by Trustpilot.comNice filtration at a fair price
Collected by Trustpilot.comJust didn't fit!
Collected by Trustpilot.comDelivered on time just what I ordered
Collected by Trustpilot.comI' ve been purchasing 4 inch filters for some time. Fast Filters is FAST at very low cost. Their ' packaging' for shipping leave a bit to be desired. Numerous times the filters arrived ' crushed' on one end or the other from shipping. To their credit, they have responded by replacing the damaged filters.
Collected by FiltersFast.comFilters came fast and in good condition
Collected by FiltersFast.comI ordered these filters, and about 4 days later, they were on my doorstep! They fit well, they filter the air well, and are an excellent value for what you pay.
Collected by FiltersFast.comThe filters are precisely sized, do an excellent filtering job and are long lasting. This is the second time I have ordered them from Filters Fast...
Collected by FiltersFast.comI received my 3-pack of filters and they were just what i needed for my system at an afordable price which is about 1/2 of what i would have paid at lowes (the only big box store that carries that size filter in my town).
Collected by FiltersFast.com