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Actual sizes vary depending on brand. 5" depth is really
4 3/8, or 4 3/4, or 5 1/4 .
> Honeywell Air Filters > Honeywell FC40R Series, Return Grill Media Filters > Honeywell FC40R1144 - ( 21 x 26 x 4)

HONEYWELL AIR FILTER

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SEAL-TIGHT™ GRILL FILTER

Seal-Tight filters have a one inch foam strip along the perimeter.
Unlike other return grill filters, the special foam strip creates
a very tight fit that prevents any air from by-passing the filter.

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Honeywell Air Filter Honeywell Grill Air Filter, 21X26X4 (20 3/4" x 25 3/4" x 3 3/4") MERV 8 AfterMarket

Honeywell Filter - Grill Aftermarket Air Filter, Furnaces For:
FC40R1144

Nominal size 21" x 26" x 4" Actual size 20 3/4" x 25 3/4" x 3 3/4"

ONLY: $42.86 each - WE BEAT ANY PRICE - Just email info@oxyclean.com
Honeywell Air Filter Honeywell Grill Air Filter, 21X26X4 (20 3/4" x 25 3/4" x 3 3/4") MERV 11 AfterMarket

Honeywell Filter - Grill Aftermarket Air Filter, Furnaces For:
FC40R1144

Nominal size 21" x 26" x 4" Actual size 20 3/4" x 25 3/4" x 3 3/4"

ONLY: $42.86 each - WE BEAT ANY PRICE - Just email info@oxyclean.com
Honeywell Air Filter Honeywell Grill Air Filter, 21X26X4 (20 3/4" x 25 3/4" x 3 3/4") MERV 13 AfterMarket

Honeywell Filter - Grill Aftermarket Air Filter, Furnaces For:
FC40R1144

Nominal size 21" x 26" x 4" Actual size 20 3/4" x 25 3/4" x 3 3/4"

ONLY: $42.86 each - WE BEAT ANY PRICE - Just email info@oxyclean.com
Honeywell ODOR DEFENSE Air Filter OXYCLEAN AIR FILTERS with ODOR DEFENSE® Honeywell Air Filter Replacement 21X26X4

Genuine OXYCLEAN AIR FILTERS with ODOR DEFENSE®

Honeywell Filter - Grill Aftermarket Air Filter, Furnaces For:
FC40R1144

Nominal size 21" x 26" x 4" Actual size 20 3/4" x 25 3/4" x 3 3/4"

ONLY: $49.53 each - WE BEAT ANY PRICE - Just email info@oxyclean.com