18x20x1-air-filter-canada

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Furnace AC Air Filter MERV 13, 20" x 20" x 1" (Pack of 6)
Furnace AC Air Filter MERV 13, 20" x 20" x 1" (Pack of 6)

$48.44

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18x20x1 Aluminum Electrostatic Air Filter for Furnace & Central Air Conditioner
18x20x1 Aluminum Electrostatic Air Filter for Furnace & Central Air Conditioner

$37.99

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(3-PACK) 18x20x1 Air Filter Pleated Standard AC Furnace Filtro de aire Plisados
(3-PACK) 18x20x1 Air Filter Pleated Standard AC Furnace Filtro de aire Plisados

$14.77

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18x20x1 MERV 8 Pleated AC Furnace Air Filters. 6 Pack. Made in USA.
18x20x1 MERV 8 Pleated AC Furnace Air Filters. 6 Pack. Made in USA.

$39.97

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18"x 20"x 1" 2-Pack AC ,Vent , Furnace Rigid Washable Air Filter
18"x 20"x 1" 2-Pack AC ,Vent , Furnace Rigid Washable Air Filter

$25.11

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Pleated Air Filters Replacement For Furnace. AC HVAC MERV 8 FPR 5 3-Pack New
Pleated Air Filters Replacement For Furnace. AC HVAC MERV 8 FPR 5 3-Pack New

$13.96

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18x20x1 Inch Standard Pleated Air Filter FPR 5, MERV 8 Moisture Resistant Frame
18x20x1 Inch Standard Pleated Air Filter FPR 5, MERV 8 Moisture Resistant Frame

$6.12

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18 x 18 x 1 Standard Pleated Air Filter FPR 5, 3-Pack, Air Filters Replacement
18 x 18 x 1 Standard Pleated Air Filter FPR 5, 3-Pack, Air Filters Replacement

$14.46

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New 18x20x1 Air Filter Standard Pleated Furnace Ac (3-pack) Best Filtro De Aire
New 18x20x1 Air Filter Standard Pleated Furnace Ac (3-pack) Best Filtro De Aire

$12.08

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18 x 30 x 1 Standard Pleated Air Filter FPR 5, Air Filters Replacement, 1 Pack
18 x 30 x 1 Standard Pleated Air Filter FPR 5, Air Filters Replacement, 1 Pack

$7.15

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3-Pack Standard Pleated Air Filter 18x20x1, Air Filters Replacement FPR 5 MERV 8
3-Pack Standard Pleated Air Filter 18x20x1, Air Filters Replacement FPR 5 MERV 8

$14.39

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18"x 20"x 1" 2-Pack AC Furnace Air Filter Rigid Washable Cut to Fit
18"x 20"x 1" 2-Pack AC Furnace Air Filter Rigid Washable Cut to Fit

$23.51

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Accumulair Gold 18x20x1 MERV 8 Air Filter (4 Pack)
Accumulair Gold 18x20x1 MERV 8 Air Filter (4 Pack)

$44.74

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Accumulair Carbon 18x20x1 MERV 10 Odor Eliminating Air Filter (4 Pack)
Accumulair Carbon 18x20x1 MERV 10 Odor Eliminating Air Filter (4 Pack)

$63.75

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(3-PACK) 18x20x1 Air Filter Standard Pleated Furnace AC Filtro de aire Plisados
(3-PACK) 18x20x1 Air Filter Standard Pleated Furnace AC Filtro de aire Plisados

$17.99

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Filter King 18x20x2 Air Filter 6-PACK MERV 8 Actual Size 18 x 20 x 1.75"
Filter King 18x20x2 Air Filter 6-PACK MERV 8 Actual Size 18 x 20 x 1.75"

$83.14

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1 PACK or 3 PACK - Air Filter Standard Pleated FPR 5 Dust Filters Furnace AC
1 PACK or 3 PACK - Air Filter Standard Pleated FPR 5 Dust Filters Furnace AC

$12.77

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Permanent Washable Electrostatic Furnace Ac Air Filter Replacement Multi Sizes
Permanent Washable Electrostatic Furnace Ac Air Filter Replacement Multi Sizes

$38.99

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18x20x1 Inch Standard Pleated Air Filter FPR 5, MERV 8 Moisture Resistant Frame
18x20x1 Inch Standard Pleated Air Filter FPR 5, MERV 8 Moisture Resistant Frame

$6.12

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(3-PACK) 18x20x1 Air Filter Standard Pleated Furnace AC Filtro de aire Plisados
(3-PACK) 18x20x1 Air Filter Standard Pleated Furnace AC Filtro de aire Plisados

$15.20

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(3-PACK) 18x20x1 Air Filter Standard Pleated Furnace AC Filtro de aire Plisados
(3-PACK) 18x20x1 Air Filter Standard Pleated Furnace AC Filtro de aire Plisados

$14.21

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18 x 20 x 1 Standard Pleated Air Filter FPR 5, 3-Pack, Air Filters Replacement
18 x 20 x 1 Standard Pleated Air Filter FPR 5, 3-Pack, Air Filters Replacement

$14.35

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18X20X1 Air Filter Standard Pleated FPR 5 Dust & Pollen High Quality (3-Pack)
18X20X1 Air Filter Standard Pleated FPR 5 Dust & Pollen High Quality (3-Pack)

$14.35

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AAF/FLANDERS Naturalaire Air Filter 18" X 20" X 1" Pleated MERV 8 - 84858011820
AAF/FLANDERS Naturalaire Air Filter 18" X 20" X 1" Pleated MERV 8 - 84858011820

$14.95

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20 in. x 20 in. x 1 in. Permanent Washable Air Filter Merv 8
20 in. x 20 in. x 1 in. Permanent Washable Air Filter Merv 8

$30.00

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18X20X1 Air Filter Standard Pleated FPR 5 Dust & Pollen High Quality (3-Pack)
18X20X1 Air Filter Standard Pleated FPR 5 Dust & Pollen High Quality (3-Pack)

$14.24

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1" Inch Glasfloss ZL MERV 10 Pleated Air Filters for AC & Furnace. 6 Pack
1" Inch Glasfloss ZL MERV 10 Pleated Air Filters for AC & Furnace. 6 Pack

$44.98

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18x20x1 MERV 10 HVAC/Furnace pleated air filter (12)
18x20x1 MERV 10 HVAC/Furnace pleated air filter (12)

$88.99

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Accumulair Gold 18x20x1 MERV 8 Air Filter (4 Pack)
Accumulair Gold 18x20x1 MERV 8 Air Filter (4 Pack)

$44.74

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Filter King 18x20x2 Air Filter 12-PACK MERV 8 Actual Size 18 x 20 x 1.75"
Filter King 18x20x2 Air Filter 12-PACK MERV 8 Actual Size 18 x 20 x 1.75"

$153.28

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Furnace AC Air Filter MERV 13, 20" x 25" x 1" (Pack of 6)
Furnace AC Air Filter MERV 13, 20" x 25" x 1" (Pack of 6)

$51.44

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AIR HANDLER Pleated Air Filter: 18x20x1, MERV 11 box of 12
AIR HANDLER Pleated Air Filter: 18x20x1, MERV 11 box of 12

$81.48

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(3-PACK) 18x20x1 Air Filter Standard Pleated Furnace AC Filtro de aire Plisados
(3-PACK) 18x20x1 Air Filter Standard Pleated Furnace AC Filtro de aire Plisados

$15.08

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(3-PACK) 18x20x1 Air Filter Standard Pleated Furnace AC Filtro de aire Plisados
(3-PACK) 18x20x1 Air Filter Standard Pleated Furnace AC Filtro de aire Plisados

$13.63

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18 X 20 X 1 Inches Standard Pleated Air Filter FPR 5 Furnace AC
18 X 20 X 1 Inches Standard Pleated Air Filter FPR 5 Furnace AC

$18.78

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PERMANENT WASHABLE ELECTROSTATIC FURNACE AC AIR FILTER Dust Electronic
PERMANENT WASHABLE ELECTROSTATIC FURNACE AC AIR FILTER Dust Electronic

$49.95

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18X20X1 Air Filter Standard Pleated FPR 5 Dust & Pollen High Quality (3-Pack)
18X20X1 Air Filter Standard Pleated FPR 5 Dust & Pollen High Quality (3-Pack)

$14.35

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New 18x20x1 Air Filter Standard Pleated Furnace Ac (3-pack) Best Filtro De Aire
New 18x20x1 Air Filter Standard Pleated Furnace Ac (3-pack) Best Filtro De Aire

$14.35

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Filter King 18x20x0.5 Air Filter 4-PACK MERV 8 Actual Size 18 x 20 x 0.5"
Filter King 18x20x0.5 Air Filter 4-PACK MERV 8 Actual Size 18 x 20 x 0.5"

$64.96

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Accumulair Diamond 18x20x1 MERV 13 Air Filter/Furnace Filters (4 pack)
Accumulair Diamond 18x20x1 MERV 13 Air Filter/Furnace Filters (4 pack)

$72.15

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18 In. X 20 In. X 1 In. Standard Pleated Air Filter FPR 5, MERV 8
18 In. X 20 In. X 1 In. Standard Pleated Air Filter FPR 5, MERV 8

$6.76

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1" Inch Glasfloss ZL MERV 10 Pleated Air Filters for AC & Furnace. Case of 12
1" Inch Glasfloss ZL MERV 10 Pleated Air Filters for AC & Furnace. Case of 12

$72.65

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Pleated Air Filters Replacement For Furnace. AC HVAC MERV 8 FPR 5 3-Pack New
Pleated Air Filters Replacement For Furnace. AC HVAC MERV 8 FPR 5 3-Pack New

$13.40

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18x20x1 MERV 6 Poly Green AC Furnace Air Filter 2 Pack - Captures Dust/Pollen
18x20x1 MERV 6 Poly Green AC Furnace Air Filter 2 Pack - Captures Dust/Pollen

$31.37

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18x20x1 MERV 6 Poly Green AC Furnace Air Filter 6 Pack - Captures Dust/Pollen
18x20x1 MERV 6 Poly Green AC Furnace Air Filter 6 Pack - Captures Dust/Pollen

$53.05

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18x18x1 MERV 8 Pleated AC Furnace Air Filters. 6 Pack. Made in USA
18x18x1 MERV 8 Pleated AC Furnace Air Filters. 6 Pack. Made in USA

$39.97

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10PCS - 8X20X1 AMERICAN INTERNATIONAL AIR FILTERS AAF PERFECT PLEAT filter
10PCS - 8X20X1 AMERICAN INTERNATIONAL AIR FILTERS AAF PERFECT PLEAT filter

$59.95

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18x20x1 Air Filter Glasfloss ZL Series MERV 10 - Box of 6
18x20x1 Air Filter Glasfloss ZL Series MERV 10 - Box of 6

$51.41

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AAF Flanders 15 x 20 x 1 in. Standard Natural Aire Air Filter MERV 8 (Pack of 4)
AAF Flanders 15 x 20 x 1 in. Standard Natural Aire Air Filter MERV 8 (Pack of 4)

$12.99

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1-Pack Standard Pleated Air Filter 18x20x1, Air Filters Replacement FPR 5 MERV 8
1-Pack Standard Pleated Air Filter 18x20x1, Air Filters Replacement FPR 5 MERV 8

$7.72

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BOX OF 6 AIRx HEALTH 18x20x1 MERV 13 Pleated Air Conditioner AC Filters!
BOX OF 6 AIRx HEALTH 18x20x1 MERV 13 Pleated Air Conditioner AC Filters!

$49.99

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18x20x1 Air Filter Glasfloss ZL Series MERV 10 - Box of 12
18x20x1 Air Filter Glasfloss ZL Series MERV 10 - Box of 12

$87.90

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NEW CASE OF (12) USA MADE 18x20x1 AIR FURNACE FILTER HVAC FILTERS NEW 6953806
NEW CASE OF (12) USA MADE 18x20x1 AIR FURNACE FILTER HVAC FILTERS NEW 6953806

$28.99

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(3-PACK) 18x20x1 Air Filter Standard Pleated Furnace AC Filtro - FREE SHIPPING
(3-PACK) 18x20x1 Air Filter Standard Pleated Furnace AC Filtro - FREE SHIPPING

$17.99

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(3-PACK) 18x20x1 Air Filter Standard Pleated Furnace AC Filtro de aire Plisados
(3-PACK) 18x20x1 Air Filter Standard Pleated Furnace AC Filtro de aire Plisados

$14.35

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18x18x1 Air Filter Standard Pleated Furnace AC FPR 5 MERV 8 (1-3 PACK)
18x18x1 Air Filter Standard Pleated Furnace AC FPR 5 MERV 8 (1-3 PACK)

$7.18

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New 18x20x1 Air Filter Standard Pleated Furnace Ac (3-pack) Best Filtro De Aire
New 18x20x1 Air Filter Standard Pleated Furnace Ac (3-pack) Best Filtro De Aire

$14.35

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New 18x20x1 Air Filter Standard Pleated Furnace Ac (3-pack) Best Filtro De Aire
New 18x20x1 Air Filter Standard Pleated Furnace Ac (3-pack) Best Filtro De Aire

$14.35

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18x20x1 MERV 6 Poly Green AC Furnace Air Filter 4 Pack - Captures Dust/Pollen
18x20x1 MERV 6 Poly Green AC Furnace Air Filter 4 Pack - Captures Dust/Pollen

$41.77

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18 X 18 X 1 Standard Pleated Air Filter FPR 5 3-Pack
18 X 18 X 1 Standard Pleated Air Filter FPR 5 3-Pack

$14.35

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AAF Flanders 10055011820 4 MERV Air Filter 20 H x 18 W x 1 D in. (Pack of 12)
AAF Flanders 10055011820 4 MERV Air Filter 20 H x 18 W x 1 D in. (Pack of 12)

$42.80

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18 x 30 x 1 Standard Pleated Air Filter FPR 5, Air Filters Replacement, 1 Pack
18 x 30 x 1 Standard Pleated Air Filter FPR 5, Air Filters Replacement, 1 Pack

$7.48

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Filtrete Air-Filter Basic Pleated Furnace Replacement Pad Dust Pack Lot 3M 6 12
Filtrete Air-Filter Basic Pleated Furnace Replacement Pad Dust Pack Lot 3M 6 12

$25.99

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Pleated Air Filters Replacement For Furnace. AC HVAC MERV 8 FPR 5 3-Pack New
Pleated Air Filters Replacement For Furnace. AC HVAC MERV 8 FPR 5 3-Pack New

$14.49

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UBeesize 18x20x1 Permanent Washable Electrostatic Air Filter Replacement
UBeesize 18x20x1 Permanent Washable Electrostatic Air Filter Replacement

$45.00

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18"x 18"x 1" 2 pack AC Furnace Air Filter Rigid Washable Cut to Fit
18"x 18"x 1" 2 pack AC Furnace Air Filter Rigid Washable Cut to Fit

$20.47

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18x18x1 MERV 10 Pleated Air Filters. 12 PACK. Actual Size: 17-1/2 x 17-1/2 x 7/8
18x18x1 MERV 10 Pleated Air Filters. 12 PACK. Actual Size: 17-1/2 x 17-1/2 x 7/8

$66.97

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18x20x1 MERV 6 Poly Green AC Furnace Air Filter 3 Pack - Captures Dust/Pollen
18x20x1 MERV 6 Poly Green AC Furnace Air Filter 3 Pack - Captures Dust/Pollen

$38.25

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Pleated Air Filters Replacement For Furnace. AC HVAC MERV 8 FPR 5, 1-Pack New
Pleated Air Filters Replacement For Furnace. AC HVAC MERV 8 FPR 5, 1-Pack New

$7.72

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18 x 24 x 1 Standard Pleated Air Filter FPR 5, 3-Pack, Air Filters Replacement
18 x 24 x 1 Standard Pleated Air Filter FPR 5, 3-Pack, Air Filters Replacement

$14.35

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12x18x1 Inch Standard Pleated Air Filter FPR 5, MERV 8 Drop and Dust Holding
12x18x1 Inch Standard Pleated Air Filter FPR 5, MERV 8 Drop and Dust Holding

$7.18

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FILTRETE- AIR-FILTER PLEATED FURNACE REPLACEMENT PAD DUST PACK 3, 6, 12 NEW
FILTRETE- AIR-FILTER PLEATED FURNACE REPLACEMENT PAD DUST PACK 3, 6, 12 NEW

$23.89

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True Blue 18" x 20" x 1" Ultra Allergen MERV 8 Pleated Air Filters 4 Pack
True Blue 18" x 20" x 1" Ultra Allergen MERV 8 Pleated Air Filters 4 Pack

$60.00

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18x20x1 in. Superior Standard Pleated Furnace Dust Air Filter FPR 9 Merv 12
18x20x1 in. Superior Standard Pleated Furnace Dust Air Filter FPR 9 Merv 12

$22.76

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Glasfloss ZL 18x18x2 MERV 10 (FPR 7) Pleated HVAC Air Filters. Case of 12
Glasfloss ZL 18x18x2 MERV 10 (FPR 7) Pleated HVAC Air Filters. Case of 12

$84.97

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Glasfloss ZL 18x20x1 MERV 10 Pleated AC Furnace Air Filters. Quantity 4.
Glasfloss ZL 18x20x1 MERV 10 Pleated AC Furnace Air Filters. Quantity 4.

$34.97

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Air-Care 20 in. x 20 in. x 1 in. Permanent Washable Air Filter MERV 8
Air-Care 20 in. x 20 in. x 1 in. Permanent Washable Air Filter MERV 8

$29.40

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20x20x1 (19_1/2x19_1/2) Pleated MERV 14 Air Filters 6 Pack
20x20x1 (19_1/2x19_1/2) Pleated MERV 14 Air Filters 6 Pack

$79.99

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(3-PACK) 18x20x1 Air Filter Standard Pleated Furnace AC Filtro de aire Plisados
(3-PACK) 18x20x1 Air Filter Standard Pleated Furnace AC Filtro de aire Plisados

$18.99

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20x20x1 (19_1/2x19_1/2) Pleated MERV 12 Air Filter 2 Pack
20x20x1 (19_1/2x19_1/2) Pleated MERV 12 Air Filter 2 Pack

$32.99

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18 x 30 x 1 Standard Pleated Air Filter FPR 5, Air Filters Replacement, 1 Pack
18 x 30 x 1 Standard Pleated Air Filter FPR 5, Air Filters Replacement, 1 Pack

$7.47

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20x20x1 (19_1/2x19_1/2) Pleated MERV 12 Air Filters 6 Pack
20x20x1 (19_1/2x19_1/2) Pleated MERV 12 Air Filters 6 Pack

$57.99

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3-Pack Standard Pleated Air Filter 18x18x1, Air Filters Replacement FPR 5 MERV 8
3-Pack Standard Pleated Air Filter 18x18x1, Air Filters Replacement FPR 5 MERV 8

$15.32

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1" Inch Depth Glasfloss ZL MERV 10 Pleated Air Filters. 3 Pack
1" Inch Depth Glasfloss ZL MERV 10 Pleated Air Filters. 3 Pack

$29.29

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18x18x1 Air Filter Standard Pleated Furnace AC FPR 5 MERV 8 (1-3 PACK)
18x18x1 Air Filter Standard Pleated Furnace AC FPR 5 MERV 8 (1-3 PACK)

$14.35

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(3-PACK) 18x20x1 Air Filter Standard Pleated Furnace AC Filtro de aire Plisados
(3-PACK) 18x20x1 Air Filter Standard Pleated Furnace AC Filtro de aire Plisados

$14.11

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Glasfloss ZL 18x20x1 MERV 10 (FPR 7) Pleated HVAC Air Filters. Case of 12
Glasfloss ZL 18x20x1 MERV 10 (FPR 7) Pleated HVAC Air Filters. Case of 12

$83.97

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Air Filter Replacement for AC - Standard Pleated FPR 5 OR FPR 7 - CHOOSE 1 or 4
Air Filter Replacement for AC - Standard Pleated FPR 5 OR FPR 7 - CHOOSE 1 or 4

$9.78

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18 in. x 20 in. x 1 in. High Quality Allergen Pleated Air Filter FPR 7, MERV 11
18 in. x 20 in. x 1 in. High Quality Allergen Pleated Air Filter FPR 7, MERV 11

$16.76

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1-Pack Standard Pleated Air Filter 18x18x1, Air Filters Replacement FPR 5 MERV 8
1-Pack Standard Pleated Air Filter 18x18x1, Air Filters Replacement FPR 5 MERV 8

$7.72

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15 x 20 x 1 Standard Pleated Air Filter FPR 5, 3-Pack, Air Filters Replacement
15 x 20 x 1 Standard Pleated Air Filter FPR 5, 3-Pack, Air Filters Replacement

$15.05

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18x20x1 MERV 6 Poly Green AC Furnace Air Filter 24 Pack - Captures Dust/Pollen
18x20x1 MERV 6 Poly Green AC Furnace Air Filter 24 Pack - Captures Dust/Pollen

$164.82

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18 x 20 x 1 in. Flanders NaturalAire Standard Pleated Air Filter - Pack Of 5
18 x 20 x 1 in. Flanders NaturalAire Standard Pleated Air Filter - Pack Of 5

$25.00

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20 X 20 X 1 Standard Pleated Air Filter [FPR 5] Air Filters 1 OR 4 Filters
20 X 20 X 1 Standard Pleated Air Filter [FPR 5] Air Filters 1 OR 4 Filters

$9.78

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18 In. X 20 In. X 1 In. Standard Pleated Furnace Air Filter FPR 5, MERV 8 3-Pack
18 In. X 20 In. X 1 In. Standard Pleated Furnace Air Filter FPR 5, MERV 8 3-Pack

$17.46

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18 in. x 20 in. x 1 in. Standard Pleated Furnace Air Filter FPR 5, MERV 8
18 in. x 20 in. x 1 in. Standard Pleated Furnace Air Filter FPR 5, MERV 8

$14.07

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18x20x1 MERV 6 Poly Green AC Furnace Air Filter 12 Pack - Captures Dust/Pollen
18x20x1 MERV 6 Poly Green AC Furnace Air Filter 12 Pack - Captures Dust/Pollen

$88.00

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(3-PACK) 18x20x1 Air Filter Standard Pleated Furnace AC Filtro de aire Plisados
(3-PACK) 18x20x1 Air Filter Standard Pleated Furnace AC Filtro de aire Plisados

$15.79

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18X20X1 Air Filter MERV 8 Dust Defense (2-Pack), Pleated HVAC AC Furnace Air Fil
18X20X1 Air Filter MERV 8 Dust Defense (2-Pack), Pleated HVAC AC Furnace Air Fil

$57.34

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Filter King 18x20x0.5 Air Filter 4-PACK MERV 8 Actual Size 17.5 x 19.5 x 0.5"
Filter King 18x20x0.5 Air Filter 4-PACK MERV 8 Actual Size 17.5 x 19.5 x 0.5"

$64.96

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