18x21 - Air Filters - The Home Depot

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18 in. x 21 in. x 1 in. Premium Pleated Air Filter FPR 10, MERV 13

+more available options

HDX18 in. x 21 in. x 1 in. Premium Pleated Air Filter FPR 10, MERV 13

(4.6 / 12135)

Model# HDX1P10-011821

$2191

New

Filterbuy18 in. x 21 in. x 1 in. MERV 8 (FPR 5) Dust Defense Pleated HVAC AC Furnace Air Filters Replacement (2-Pack)

Model# AFB18x21x1M8Apk2

$3474

($17.37 /filter)

New

Filterbuy18 in. x 21 in. x 1 in. MERV 8 (FPR 5) Dust Defense Pleated HVAC AC Furnace Air Filters Replacement (6-Pack)

Model# AFB18x21x1M8Apk6

$7710

($12.85 /filter)

New

Filterbuy18 in. x 21 in. x 1 in. MERV 8 (FPR 5) Dust Defense Pleated HVAC AC Furnace Air Filters Replacement (4-Pack)

Model# AFB18x21x1M8Apk4

$5976

($14.94 /filter)

New

Filterbuy18 in. x 21 in. x 1 in. MERV 8 (FPR 5) Dust Defense Pleated HVAC AC Furnace Air Filters Replacement (12-Pack)

Model# AFB18x21x1M8Apk12

$13872

($11.56 /filter)

New

Filterbuy18 in. x 21 in. x 1 in. MERV 13 (FPR 10) Health Defense Pleated HVAC AC Furnace Air Filters Replacement (5-Pack)

Model# AFB18x21x1M13Apk5

$10125

($20.25 /filter)

Filterbuy18 in. x 21 in. x 1 in. MERV 13 (FPR 10) Health Defense Pleated HVAC AC Furnace Air Filters Replacement (4-Pack)

Model# AFB18x21x1M13Apk4-New

$8648

($21.62 /filter)

Filterbuy18 in. x 21 in. x 1 in. MERV 13 (FPR 10) Health Defense Pleated HVAC AC Furnace Air Filters Replacement (3-Pack)

Model# AFB18x21x1M13Apk3

$6855

($22.85 /filter)

New

Filterbuy18 in. x 21 in. x 1 in. MERV 13 (FPR 10) Health Defense Pleated HVAC AC Furnace Air Filters Replacement (2-Pack)

Model# AFB18x21x1M13Apk2

$4824

($24.12 /filter)

Filterbuy18 in. x 21 in. x 1 in. MERV 11 (FPR 7) Allergen Defense Pleated HVAC AC Furnace Air Filters Replacement (6-Pack)

Model# AFB18x21x1M11Apk6

$9834

($16.39 /filter)

New

Filterbuy18 in. x 21 in. x 1 in. MERV 11 (FPR 7) Allergen Defense Pleated HVAC AC Furnace Air Filters Replacement (4-Pack)

Model# AFB18x21x1M11Apk4

$7536

($18.84 /filter)

Filterbuy18 in. x 21 in. x 1 in. MERV 11 (FPR 7) Allergen Defense Pleated HVAC AC Furnace Air Filters Replacement (3-Pack)

Model# AFB18x21x1M11Apk3

$6018

($20.06 /filter)

18X21 AIR FILTERS

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Category

Heating, Venting & Cooling

Air Filters

Review Rating

1 & Up

2 & Up

3 & Up

4 & Up

Brand

Price

Air Filter Size

MERV Rating (Minimum Efficiency Reporting Value)

Air Filter Features

Contaminants Captured

Filter Performance Rating (FPR)

Pack Size

HDX18 in. x 21 in. x 1 in. Premium Pleated Air Filter FPR 10, MERV 13

Filterbuy18 in. x 21 in. x 1 in. MERV 8 (FPR 5) Dust Defense Pleated HVAC AC Furnace Air Filters Replacement (2-Pack)

Filterbuy18 in. x 21 in. x 1 in. MERV 8 (FPR 5) Dust Defense Pleated HVAC AC Furnace Air Filters Replacement (6-Pack)

Filterbuy18 in. x 21 in. x 1 in. MERV 8 (FPR 5) Dust Defense Pleated HVAC AC Furnace Air Filters Replacement (4-Pack)

Filterbuy18 in. x 21 in. x 1 in. MERV 8 (FPR 5) Dust Defense Pleated HVAC AC Furnace Air Filters Replacement (12-Pack)

Filterbuy18 in. x 21 in. x 1 in. MERV 13 (FPR 10) Health Defense Pleated HVAC AC Furnace Air Filters Replacement (5-Pack)

Filterbuy18 in. x 21 in. x 1 in. MERV 13 (FPR 10) Health Defense Pleated HVAC AC Furnace Air Filters Replacement (4-Pack)

Filterbuy18 in. x 21 in. x 1 in. MERV 13 (FPR 10) Health Defense Pleated HVAC AC Furnace Air Filters Replacement (3-Pack)

Filterbuy18 in. x 21 in. x 1 in. MERV 13 (FPR 10) Health Defense Pleated HVAC AC Furnace Air Filters Replacement (2-Pack)

Filterbuy18 in. x 21 in. x 1 in. MERV 11 (FPR 7) Allergen Defense Pleated HVAC AC Furnace Air Filters Replacement (6-Pack)

Filterbuy18 in. x 21 in. x 1 in. MERV 11 (FPR 7) Allergen Defense Pleated HVAC AC Furnace Air Filters Replacement (4-Pack)

Filterbuy18 in. x 21 in. x 1 in. MERV 11 (FPR 7) Allergen Defense Pleated HVAC AC Furnace Air Filters Replacement (3-Pack)

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18X21 AIR FILTERS

Get It Fast

Category

Review Rating

1 & Up

2 & Up

3 & Up

4 & Up

Brand

Price

Air Filter Size

MERV Rating (Minimum Efficiency Reporting Value)

Air Filter Features

Contaminants Captured

Filter Performance Rating (FPR)

Pack Size

HDX18 in.​ x 21 in.​ x 1 in.​ Premium Pleated Air Filter FPR 10, MERV 13

Filterbuy18 in.​ x 21 in.​ x 1 in.​ MERV 8 (FPR 5)​ Dust Defense Pleated HVAC AC Furnace Air Filters Replacement (2-​Pack)​

Filterbuy18 in.​ x 21 in.​ x 1 in.​ MERV 8 (FPR 5)​ Dust Defense Pleated HVAC AC Furnace Air Filters Replacement (6-​Pack)​

Filterbuy18 in.​ x 21 in.​ x 1 in.​ MERV 8 (FPR 5)​ Dust Defense Pleated HVAC AC Furnace Air Filters Replacement (4-​Pack)​

Filterbuy18 in.​ x 21 in.​ x 1 in.​ MERV 8 (FPR 5)​ Dust Defense Pleated HVAC AC Furnace Air Filters Replacement (12-​Pack)​

Filterbuy18 in.​ x 21 in.​ x 1 in.​ MERV 13 (FPR 10)​ Health Defense Pleated HVAC AC Furnace Air Filters Replacement (5-​Pack)​

Filterbuy18 in.​ x 21 in.​ x 1 in.​ MERV 13 (FPR 10)​ Health Defense Pleated HVAC AC Furnace Air Filters Replacement (4-​Pack)​

Filterbuy18 in.​ x 21 in.​ x 1 in.​ MERV 13 (FPR 10)​ Health Defense Pleated HVAC AC Furnace Air Filters Replacement (3-​Pack)​

Filterbuy18 in.​ x 21 in.​ x 1 in.​ MERV 13 (FPR 10)​ Health Defense Pleated HVAC AC Furnace Air Filters Replacement (2-​Pack)​

Filterbuy18 in.​ x 21 in.​ x 1 in.​ MERV 11 (FPR 7)​ Allergen Defense Pleated HVAC AC Furnace Air Filters Replacement (6-​Pack)​

Filterbuy18 in.​ x 21 in.​ x 1 in.​ MERV 11 (FPR 7)​ Allergen Defense Pleated HVAC AC Furnace Air Filters Replacement (4-​Pack)​

Filterbuy18 in.​ x 21 in.​ x 1 in.​ MERV 11 (FPR 7)​ Allergen Defense Pleated HVAC AC Furnace Air Filters Replacement (3-​Pack)​

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Resources

About Us

Our Other Sites

HDX18 in. x 21 in. x 1 in. Premium Pleated Air Filter FPR 10, MERV 13

Filterbuy18 in. x 21 in. x 1 in. MERV 8 (FPR 5) Dust Defense Pleated HVAC AC Furnace Air Filters Replacement (2-Pack)

Filterbuy18 in. x 21 in. x 1 in. MERV 8 (FPR 5) Dust Defense Pleated HVAC AC Furnace Air Filters Replacement (6-Pack)

Filterbuy18 in. x 21 in. x 1 in. MERV 8 (FPR 5) Dust Defense Pleated HVAC AC Furnace Air Filters Replacement (4-Pack)

Filterbuy18 in. x 21 in. x 1 in. MERV 8 (FPR 5) Dust Defense Pleated HVAC AC Furnace Air Filters Replacement (12-Pack)

Filterbuy18 in. x 21 in. x 1 in. MERV 13 (FPR 10) Health Defense Pleated HVAC AC Furnace Air Filters Replacement (5-Pack)

Filterbuy18 in. x 21 in. x 1 in. MERV 13 (FPR 10) Health Defense Pleated HVAC AC Furnace Air Filters Replacement (4-Pack)

Filterbuy18 in. x 21 in. x 1 in. MERV 13 (FPR 10) Health Defense Pleated HVAC AC Furnace Air Filters Replacement (3-Pack)

Filterbuy18 in. x 21 in. x 1 in. MERV 13 (FPR 10) Health Defense Pleated HVAC AC Furnace Air Filters Replacement (2-Pack)

Filterbuy18 in. x 21 in. x 1 in. MERV 11 (FPR 7) Allergen Defense Pleated HVAC AC Furnace Air Filters Replacement (6-Pack)

Filterbuy18 in. x 21 in. x 1 in. MERV 11 (FPR 7) Allergen Defense Pleated HVAC AC Furnace Air Filters Replacement (4-Pack)

Filterbuy18 in. x 21 in. x 1 in. MERV 11 (FPR 7) Allergen Defense Pleated HVAC AC Furnace Air Filters Replacement (3-Pack)