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Honeywell Return Grille Filter, 12" x 12" x 3", MERV 10

Model: Honeywell FC40R1094

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Model: Honeywell FC40R1094

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If ordered by 1PM CST M-F, ships same day. All items on your order must be in stock for same-day shipping.

When installed into your home’s ceiling or wall return grille(s), Honeywell’s High-Performance Return Grille Filters provide air filtration equivalent to typical four-inch media filters in a one-inch return grille space.

The Return Grille Filter is up to 10 times more effective than standard one-inch filters at trapping and filtering dust, as well as reducing pollen, mold spores, bacteria and other allergens passing through your HVAC system. This ensures that cleaner air is distributed throughout your home. Additionally, Return Grille Filters from Honeywell last up to three times longer than standard one-inch filters, which mean less maintenance for improved indoor air quality.


  • Mounts in most return filter grilles.
  • Pleated for greater media capacity.
  • Low pressure drop provides a comfortable air flow.
  • Maintains equipment efficiency longer than standard filters.


  • Pollen
  • Household Dust
  • Airborne Dust Mite Debris
  • Mold Spores
  • Common Allergens
  • Clothing Fibers
  • Carpet Fibers
  • Pet Dander
  • Hairspray
  • Household Cleaner
  • Auto Emissions
System Information
Static Pressure Drop
0.12 in. w.c.
Pack Quantity
E1 (0.3-1 micron)
31 % Efficient
E2 (1-3 micron)
61 % Efficient
E3 (3-10 micron)
86 % Efficient
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Minimum Efficiency Reporting Value
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Rated Air Flow
350 CFM
Product Dimensions
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3 Inches
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12 Inches
12 Inches
Filter Dimensions
12 x 12
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