Loading... Please wait...

FC100A1045 21.5X27.5 Air Filter - Available in 5 packs only.

  • Image 1
  • Image 2

FC100A1045 (5)
Usually ships within 3 business days.
Calculated at checkout

Product Description

Honeywell FC100A1045, 21.5" X 27.5" X 4", MERV 11, Media Air Filter. (Actual Dimensions - 21-1/2" X 27-1/2" X 4-3/8"). 

The Honeywell FC100A media air filter is the replacement filter for all Honeywell F100 media air cleaners.  The filter removes over 85% of 3.0-10.0 micron particles from the air. This high efficiency filter is rated MERV 11.

Much of our time is spent indoors, inside our homes.  Making it all the more vital to ensure that the air our families breathe is as clean, healthy and as purified as possible.  Media filters work by capturing airborne particulats as they pass through the filter. filtration can help to remove dust, pollen and many allergens from the air in your home.  It is also a great way to capture pet dander, smoke, airborne mold, bacteria and other irritants. And properly maintaining your Honeywell air filter by replacing it at the recommended intervals will help keep your furnace, heat pump and air conditioner running efficiently.  Breathe a little easier with this media air filter from Honeywell.  Order your Honeywell replacement air filter today and rest assured that you have taken a great step toward protecting your family’s health and improving the air quality in your home.

Replacement: Honeywell recommends this filter be replaced every 6 to 12 months for maximum efficiency and effectiveness. For best results, we recommend replacing your filter twice per year, typically before the heating and cooling season. Life expectancy may be reduced by the external environment and conditions in the home. 

Filter Replacement Guide

F100 Brochure

Media Air Cleaner Info Sheet

Media Air cleaner Operating Guide



  • Application: Replacement Filter
  • Used With: Honeywell F100, F150, F200, F25, F35, F50 and F300 Air Cleaners.
  • Efficiency Standard: Efficiency ratings are based on American Society of Heating, Refrigerating and Air-Conditioning Engineers Standard 52.2-1999.
  • Efficiency Standard: Efficiency ranges are defined for small particles, E1=0.3 to 1.0 microns; medium particles, E2=1.0 to 3.0 microns; and large particles, E3=3.0 to 10.0 microns.
  • Fractional Efficiency: E1=25%, E2=62%, E3=85%
  • Minimum Efficiency Reporting Value (Media Filters Only): MERV 11
  • Static Pressure Drop (in. w.c.): 0.23 at 500 FPM
Nominal Dimensions:
21 1/2 x 27 1/2 x 4
Exact Dimensions:
21 1/2 X 27 1/2 X 4 3/4
Static Pressure Drop:
Product Life:
6-12 months.
OEM Honeywell:
Write a Review

Product Reviews

This product hasn't received any reviews yet. Be the first to review this product!

You Recently Viewed...

Sign up for our newsletter