MERV 8 Filters Fast® 4" AC and Furnace Air Filters 3-pack

FF4M8

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Only $20.32 per Filter
$60.95 ea
FF4M8 Sizes :
$60.95/3-Pack
Retail:$70.99
You Save: 14%
Ships in 1 to 2 business days.

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The Filters Fast® FF4M8 3-Pack is a set of MERV 8 filters that effectively reduces contaminants 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. The MERV 8 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.

Filters Fast® FF4M8 3-Pack Filter Specifications:

  • Part Number: FF4M8
  • Pack Size: 3 Filters
  • MERV Rating: 8
  • Filter Type: Electrostatic pleated
  • Material: Synthetic
  • Replace every 3 months
  • For commercial and residential use
  • Note: These filters do not contain fiberglass.

The Filters Fast® FF4M8 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 PF8.0412243PFF
16x20x4 Air Filter 15.375x19.375x3.625 PF8.0416203PFF
16x25x4 Air Filter 15.375x24.375x3.625 PF8.0416253PFF
18x24x4 Air Filter 17.375x23.375x3.625 PF8.0418243PFF
20x20x4 Air Filter 19.375x19.375x3.625 PF8.0420203PFF
20x24x4 Air Filter 19.375x23.375x3.625 PF8.0420243PFF
20x25x4 Air Filter 19.375x24.375x3.625 PF8.0420253PFF
24x24x4 Air Filter 23.375x23.375x3.625 PF8.0424243PFF
25x29x4 Air Filter 24.375x28.375x3.625 PF8.0425293PFF

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!

MERV Air Filter Chart


Compatible Models:

The MERV 8 Filters Fast® 4" AC and Furnace Air Filters 3-pack is correct replacement for the following model numbers:

  • GeneralAir TERSus 2000 Air Purification Systems
  • GeneralAire 5FM2025
  • GeneralAire MAC2000
  • Trion 255649-102
FF4M8 is used in the following Models
GeneralAire
 GeneralAir TERSus 2000 Air Purification Systems
GeneralAire
 GeneralAire MAC2000
GeneralAire
 GeneralAire 5FM2025
GeneralAire
 Trion 255649-102