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actual size
  • Size Actual Dimension
  • 08x08x1 8" x 8" x 0.75"
  • 10x10x1 9.75" x 9.75" x 0.75"
  • 10x20x1 9.75" x 19.75" x 0.75"
  • 10x24x1 9.5" x 23.5" x 0.75"
  • 12x12x1 11.75" x 11.75" x 0.75"
  • 12x18x1 11.75" x 17.75" x 0.75"
  • 12x20x1 11.75" x 19.75" x 0.75"
  • 12x24x1 11.75" x 23.75" x 0.75"
  • 12x25x1 11.75" x 24.75" x 0.75"
  • 12x30x1 11.75" x 29.75" x 0.75"
  • 12x36x1 11.5" x 35.5" x 0.75"
  • 13x21.5x1 13" x 21.5" x 0.75"
  • 14x14x1 13.75" x 13.75" x 0.75"
  • 14x15.5x1 14" x 15.5" x 0.75"
  • 14x18x1 13.75" x 17.75" x 0.75"
  • 14x20x1 13.75" x 19.75" x 0.75"
  • 14x24x1 13.75" x 23.75" x 0.75"
  • 14x25x1 13.75" x 24.75" x 0.75"
  • 14x30x1 13.75" x 29.75" x 0.75"
  • 15x20x1 14.75" x 19.75" x 0.75"
  • 16x16x1 15.75" x 15.75" x 0.75"
  • 16x20x1 15.75" x 19.75" x 0.75"
  • 16x24x1 15.75" x 23.75" x 0.75"
  • 16x25x1 15.75" x 24.75" x 0.75"
  • 16x30x1 15.75" x 29.75" x 0.75"
  • 16x32x1 15.5" x 31.5" x 0.75"
  • 17.5x23.5x1 17.5" x 23.5" x 0.75"
  • 18x18x1 17.75" x 17.75" x 0.75"
  • 18x20x1 17.75" x 19.75" x 0.75"
  • 18x22x1 17.75" x 21.75" x 0.75"
  • 18x24x1 17.75" x 23.75" x 0.75"
  • 18x25x1 17.75" x 24.75" x 0.75"
  • 18x30x1 17.75" x 29.75" x 0.75"
  • 20x20x1 19.5" x 19.5" x 0.75"
  • 20x21.5x1 20" x 21.5" x 0.75"
  • 20x21x1 19.75" x 20.75" x 0.75"
  • 20x22x1 19.75" x 21.75" x 0.75"
  • 20x24x1 19.75" x 23.75" x 0.75"
  • 20x25x1 19.75" x 24.75" x 0.75"
  • 20x30x1 19.875" x 29.875" x 0.75"
  • 21.5x23.2x1 21.5" x 23.25" x 0.75"
  • 22x22x1 21.75" x 21.75" x 0.75"
  • 23.5x23.5x1 23.5" x 23.5" x 0.75"
  • 24x24x1 23.75" x 23.75" x 0.75"
  • 24x30x1 23.875" x 29.875" x 0.75"
  • 25x25x1 24.75" x 24.75" x 0.75"
  • 30x30x1 29.5" x 29.5" x 0.75"
  • 30x36x1 29.5" x 35.5" x 0.75"
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Filters Fast® 1" Air Filters MERV 8 Replacement for Rheem FPR 4 6-Pack

FFM8 6pk RH

$59.95
Retail: $77.99 /ea
You Save: 23%
As low as
$59.95
Retail: $77.99
You Save: 23%
MERV 8 - 6-pack Sizes :
Ships in 1 to 2 business days.
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The Filters Fast® 1" Air Filters MERV 8 With Pleats 6-Pack is the compatible replacement for the Rheem Basic Household Pleated FPR 4 1" Air Filter. The Filters Fast® FFM8 6-Pack is a fantastic set of MERV 8 filters that effectively reduce pollen, dust, pet dander and other allergens from indoor air. The Filters Fast® FFM8 6-Pack removes harmful airborne particles which alleviates allergies and sinus irritation that can cause watery eyes, itchy throat, coughing, and sneezing. Besides the health benefits, these Filters Fast® HVAC air filter will help your heating and cooling system operate more efficiently, thus saving you and your family money.

The Rheem FPR (Filter Performance Rating) 4 is the same rating as the Filters Fast® ' s 1" MERV 8. Filters Fast® recommends MERV rated air filters because MERV (Minimum Efficiency Reporting Value) is recognized by the American Society of Heating, Refrigeration and Air Conditioner Engineers - ASHRAE and is a recognized industry standard.

Filters Fast® FFM8 6-Pack Filter Specifications:

The Filters Fast® FFM8 6-Pack replaces the following filters:

  • Aerostar Air Filters
  • Dupont Silver
  • Dupont Silver Extra
  • Dupont Bronze
  • Dupont Contractor
  • Dupont Allergen Air filters
  • Filtrete Micro Allergen Filters
  • Rheem Basic Household FPR 4

The Filters Fast® FFM8 6-Pack 1" Air Filter is available in the following sizes:

Nominal Size Actual Size

  • 08x08x1 Air Filter 8.0x8.0x0.75
  • 10x10x1 Air Filter 9.75x9.75x.75
  • 10x16x1 Air Filter 9.75x15.5x.75
  • 10x20x1 Air Filter 9.75x19.75x.75
  • 10x24x1 Air Filter 9.5x23.5x.75
  • 10x30x1 Air Filter 9.75x29.75x.75
  • 12x12x1 Air Filter 11.75x11.75x.75
  • 12x15x1 Air Filter 11.5x14.5x.75
  • 12x16x1 Air Filter 11.75x15.75x.75
  • 12x18x1 Air Filter 11.75x17.75x.75
  • 12x20x1 Air Filter 11.75x19.75x.75
  • 12x22x1 Air Filter 11.75x21.75x.75
  • 12x24x1 Air Filter 11.75x23.75x.75
  • 12x25x1 Air Filter 11.75x24.75x.75
  • 12x30x1 Air Filter 11.75x29.75x.75
  • 14x14x1 Air Filter 13.75x13.75x.75
  • 14x15.5x1 Air Filter 14" x15.5" x.75"
  • 14x18x1 Air Filter 13.75x17.75x.75
  • 14x20x1 Air Filter 13.75x19.75x.75
  • 14x24x1 Air Filter 13.75x23.75x.75
  • 14x25x1 Air Filter 13.75x24.75x.75
  • 14x30x1 Air Filter 13.75x29.75x.75
  • 15x20x1 Air Filter 14.75x19.75x.75
  • 15x25x1 Air Filter 14.75x24.75x.75
  • 16x16x1 Air Filter 15.75x15.75x1
  • 16x18x1 Air Filter 15.75x17.5x.75
  • 16x20x1 Air Filter 15.75x19.75x.75
  • 16x24x1 Air Filter 15.75x23.75x.75
  • 16x25x1 Air Filter 15.75x24.75x.75
  • 16x30x1 Air Filter 15.75x29.75x.75
  • 16x32x1 Air Filter 15.5x31.5x.75
  • 18x18x1 Air Filter 17.75x17.75x.75
  • 18x20x1 Air Filter 17.75x19.75x.75
  • 18x22x1 Air Filter 17.75x21.75x.75
  • 18x24x1 Air Filter 17.5x23.75x.75
  • 18x25x1 Air Filter 17.5x24.75x.75
  • 18x30x1 Air Filter 17.75x29.75x.75
  • 20x20x1 Air Filter 19.5x19.5x.75
  • 20x21.5x1 Air Filter 20" x21.5" x.75"
  • 20x21x1 Air Filter 19.75" x20.75" x.75"
  • 20x22x1 Air Filter 19.75x21.75x.75
  • 20x24x1 Air Filter 19.75x23.75x.75
  • 20x25x1 Air Filter 19.75x24.75x.75
  • 20x30x1 Air Filter 19.75x29.75x.75"
  • 21.5x23.2x1 Air Filter 21.5" x23.25" x.75"
  • 22x22x1 Air Filter 21.75x21.75x.75
  • 24x24x1 Air Filter 23.5x23.5x.75
  • 24x30x1 Air Filter 23.875x29.875x.75
  • 25x25x1 Air Filter 24.75x24.75x.75
  • 30x30x1 Air Filter 29.5x29.5x.75
  • 30x36x1 Air Filter 29.5x35.5x.75

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

Note: These filters do not contain fiberglass.

Compatible Parts:

The Filters Fast® 1" Air Filters MERV 8 Replacement for Rheem FPR 4 6-Pack is the correct replacement for the following part numbers:

Part Number
DuPont Allergen Air filters
DuPont Bronze
DuPont Contractor
DuPont Silver
DuPont Silver Extra
Filtrete Micro Allergen Filters
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Compatible Models:

The Filters Fast® 1" Air Filters MERV 8 Replacement for Rheem FPR 4 6-Pack is correct replacement for the following model numbers:

BrandModel NumberDescription
Filters FastCommercial HVAC systemsIndustrial Air
Filters FastIndustrial air cleanersIndustrial Air
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