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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 FC40R1136 - ( 18 x 24 )

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 SEAL-TIGHT™ Return Air Grille Filter, 18X24X5 (17 3/4 x 23 3/4 x 3 3/4) with ODOR DEFENSE®
ONLY: $49.53 each - DUE TO CANADA FIRES AND A LABOR SHOTAGE LEAD TIME IS 3-4 WEEKS
Honeywell Air Filter SEAL-TIGHT™ Return Air Grille Filter, 18X24X4 (17 3/4 x 23 3/4 x 3 3/4) MERV 13
ONLY: $42.86 each - DUE TO CANADA FIRES AND A LABOR SHOTAGE LEAD TIME IS 3-4 WEEKS
Honeywell Air Filter SEAL-TIGHT™ Return Air Grille Filter, 18X24X4 (17 3/4 x 23 3/4 x 3 3/4) MERV 11
ONLY: $40.86 each - DUE TO CANADA FIRES AND A LABOR SHOTAGE LEAD TIME IS 3-4 WEEKS
Honeywell Air Filter SEAL-TIGHT™ Return Air Grille Filter, 18X24X4 (17 3/4 x 23 3/4 x 3 3/4) MERV 8
ONLY: $38.86 each - DUE TO CANADA FIRES AND A LABOR SHOTAGE LEAD TIME IS 3-4 WEEKS
Honeywell Grille Air Filter Honeywell Grille Air Filter Replacement, 18X24X5 (17 3/4 x 23 3/4 x 4 3/8) MERV 13 - AfterMarket
ONLY: $44.86 each - DUE TO CANADA FIRES AND A LABOR SHOTAGE LEAD TIME IS 3-4 WEEKS
Honeywell Grille Air Filter Honeywell Grille Air Filter Replacement, 18X24X5 (17 3/4 x 23 3/4 x 4 3/8) MERV 11 - AfterMarket
ONLY: $42.86 each - DUE TO CANADA FIRES AND A LABOR SHOTAGE LEAD TIME IS 3-4 WEEKS
Honeywell Grille Air Filter Honeywell Grille Air Filter Replacement, 18X24X5 (17 3/4 x 23 3/4 x 4 3/8) MERV 8 - AfterMarket
ONLY: $40.86 each - DUE TO CANADA FIRES AND A LABOR SHOTAGE LEAD TIME IS 3-4 WEEKS
Honeywell Grill ODOR DEFENSE Air Filter Honeywell Grill Air Filter Replacement 18X24X5 (17 3/4 x 23 3/4 x 4 3/8) ODOR DEFENSE
ONLY: $49.53 each - DUE TO CANADA FIRES AND A LABOR SHOTAGE LEAD TIME IS 3-4 WEEKS