12x18x1-air-filter

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12x18x1 AC and Furnace Air Filter by Aerostar - MERV 13, Box of 12
12x18x1 AC and Furnace Air Filter by Aerostar - MERV 13, Box of 12

$91.38

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12x18x1 AC and Furnace Air Filter by Aerostar - MERV 8, Box of 12
12x18x1 AC and Furnace Air Filter by Aerostar - MERV 8, Box of 12

$60.13

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Aerostar 12x18x1 MERV 11 Air Filter, 6 Pack
Aerostar 12x18x1 MERV 11 Air Filter, 6 Pack

$42.72

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

$44.95

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12x18x1 MERV 6 Poly Green AC Furnace Air Filter 6 Pack - Captures Dust/Pollen
12x18x1 MERV 6 Poly Green AC Furnace Air Filter 6 Pack - Captures Dust/Pollen

$50.35

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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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12x18x1 MERV 6 Poly Green AC Furnace Air Filter 3 Pack - Captures Dust/Pollen
12x18x1 MERV 6 Poly Green AC Furnace Air Filter 3 Pack - Captures Dust/Pollen

$37.07

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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

$9.77

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Many Sizes - 1 Air Filter Standard Pleated FPR 5 MERV 8 Dust Filters Furnace AC
Many Sizes - 1 Air Filter Standard Pleated FPR 5 MERV 8 Dust Filters Furnace AC

$6.99

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12x18x1 Air Filter Pleated Standard Furnace AC Filtro de aire 1-filter HDX
12x18x1 Air Filter Pleated Standard Furnace AC Filtro de aire 1-filter HDX

$7.92

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Ventaerex AC Air Furnace Filters - Cut to Fit - Washable Filters
Ventaerex AC Air Furnace Filters - Cut to Fit - Washable Filters

$20.99

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GRAINGER 5E891 Non-Pleated Air Filter, 12x18x1, MERV 5 5E891 PK 12
GRAINGER 5E891 Non-Pleated Air Filter, 12x18x1, MERV 5 5E891 PK 12

$86.40

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Aerostar 12x18x1 MERV 13 Furnace Air Filter, 4 Pack
Aerostar 12x18x1 MERV 13 Furnace Air Filter, 4 Pack

$37.51

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Aerostar 12x18x1 MERV 8, Pleated Air Filter, 12x18x1, Box of 6
Aerostar 12x18x1 MERV 8, Pleated Air Filter, 12x18x1, Box of 6

$37.96

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12x18x1 AC and Furnace Air Filter by Aerostar - MERV 11, Box of 12
12x18x1 AC and Furnace Air Filter by Aerostar - MERV 11, Box of 12

$90.11

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Filter King 12x18x1 Air Filter 4-PACK MERV 13 Actual Size 11.5 x 17.5 x .75"
Filter King 12x18x1 Air Filter 4-PACK MERV 13 Actual Size 11.5 x 17.5 x .75"

$59.99

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

$9.75

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1-Pack Standard Pleated Air Filter 12x18x1, Air Filters Replacement FPR 5 MERV 8
1-Pack Standard Pleated Air Filter 12x18x1, Air Filters Replacement FPR 5 MERV 8

$7.72

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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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Simply Filters 12x18x1 MERV 13, MPR 1500, AC Furnace HVAC Air Filter
Simply Filters 12x18x1 MERV 13, MPR 1500, AC Furnace HVAC Air Filter

$33.76

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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

$24.30

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12x18x1 Inch Standard Pleated Air Filter FPR 5, MERV 8 Drop & Dust Holding, 2pk
12x18x1 Inch Standard Pleated Air Filter FPR 5, MERV 8 Drop & Dust Holding, 2pk

$14.59

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Aerostar 12x18x1 MERV 8 Furnace Air Filter, 4 Pack
Aerostar 12x18x1 MERV 8 Furnace Air Filter, 4 Pack

$28.47

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Filterbuy 12x18x1 Pleated Air Filters, Replacement for HVAC AC Furnace (MERV 8)
Filterbuy 12x18x1 Pleated Air Filters, Replacement for HVAC AC Furnace (MERV 8)

$31.08

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12x18x1 Air Filter Pleated Standard Furnace AC Filtro de aire 1-filter HDX
12x18x1 Air Filter Pleated Standard Furnace AC Filtro de aire 1-filter HDX

$7.74

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Simply Filters 12x18x1 MERV 8, MPR 600, AC Furnace HVAC Air Filter
Simply Filters 12x18x1 MERV 8, MPR 600, AC Furnace HVAC Air Filter

$49.99

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PERMANENT WASHABLE Metal Aluminum Air Filter Industrial HVAC Heavy Duty
PERMANENT WASHABLE Metal Aluminum Air Filter Industrial HVAC Heavy Duty

$29.99

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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

$9.72

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Filterbuy 12x18x1 Pleated Air Filters, Replacement for HVAC AC Furnace (MERV 11)
Filterbuy 12x18x1 Pleated Air Filters, Replacement for HVAC AC Furnace (MERV 11)

$27.64

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Filter King 12x18x1 Air Filter 4-PACK MERV 8 Actual Size 12 x 18 x .75"
Filter King 12x18x1 Air Filter 4-PACK MERV 8 Actual Size 12 x 18 x .75"

$50.36

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Aerostar 12x18x1 MERV 11 Furnace Air Filter, 4 Pack
Aerostar 12x18x1 MERV 11 Furnace Air Filter, 4 Pack

$32.80

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Filter King 12x18x1 Air Filter 12-PACK MERV 13 Actual Size 11.5 x 17.5 x .75"
Filter King 12x18x1 Air Filter 12-PACK MERV 13 Actual Size 11.5 x 17.5 x .75"

$150.33

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Nordic Pure 12x18x1 Furnace Air Filters MERV 12 Pleated Plus Carbon 6 Pack
Nordic Pure 12x18x1 Furnace Air Filters MERV 12 Pleated Plus Carbon 6 Pack

$81.99

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12x18x1 MERV 6 Poly Green AC Furnace Air Filter 2 Pack - Captures Dust/Pollen
12x18x1 MERV 6 Poly Green AC Furnace Air Filter 2 Pack - Captures Dust/Pollen

$30.51

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Filters 12x18x1 8, MPR 600, Air Filter (6 Pack) - Actual Size: 12"x18"x0.75" ...
Filters 12x18x1 8, MPR 600, Air Filter (6 Pack) - Actual Size: 12"x18"x0.75" ...

$73.23

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12x18x1 MERV 6 Poly Green AC Furnace Air Filter 12 Pack - Captures Dust/Pollen
12x18x1 MERV 6 Poly Green AC Furnace Air Filter 12 Pack - Captures Dust/Pollen

$79.58

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Simply Filters 12x18x1 MERV 11, MPR 1000, AC Furnace HVAC Air Filter
Simply Filters 12x18x1 MERV 11, MPR 1000, AC Furnace HVAC Air Filter

$27.84

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Nordic Pure 12" x 18" x 1" Pleated MERV 12 Air Filters (6 Pack)
Nordic Pure 12" x 18" x 1" Pleated MERV 12 Air Filters (6 Pack)

$49.23

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Filter King 12x18x1 Air Filter 12-PACK MERV 13 Actual Size 12 x 18 x .75"
Filter King 12x18x1 Air Filter 12-PACK MERV 13 Actual Size 12 x 18 x .75"

$150.33

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Filter King 12x18x1 Air Filter 6-PACK MERV 13 Actual Size 11.5 x 17.5 x .75"
Filter King 12x18x1 Air Filter 6-PACK MERV 13 Actual Size 11.5 x 17.5 x .75"

$86.19

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AAF Flanders EZ Flow II 12" X 18" X 1" Fiberglass 4 MERV Air Filter (Case of 12)
AAF Flanders EZ Flow II 12" X 18" X 1" Fiberglass 4 MERV Air Filter (Case of 12)

$46.95

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Nordic Pure 12x18x1 (11 1/2 x 17 1/2 ) Pleated MERV 12 Air Filters 6 Pack
Nordic Pure 12x18x1 (11 1/2 x 17 1/2 ) Pleated MERV 12 Air Filters 6 Pack

$44.99

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FILTER FURN GLS 12X18X1
FILTER FURN GLS 12X18X1

$77.99

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Filterbuy 4 pack 12” X 18” X 1” Air Filter Merv11/Gold Pleated HVAC AC Filters
Filterbuy 4 pack 12” X 18” X 1” Air Filter Merv11/Gold Pleated HVAC AC Filters

$34.99

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Filters 12x18x1 8, MPR 600, Air Filter (6 Pack) - Actual Size: 12"x18"x0.75" ...
Filters 12x18x1 8, MPR 600, Air Filter (6 Pack) - Actual Size: 12"x18"x0.75" ...

$73.23

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True Blue 112181 12x18 x 1 In. Fiberglass Air Filter, 30 Days - Quantity 12
True Blue 112181 12x18 x 1 In. Fiberglass Air Filter, 30 Days - Quantity 12

$45.98

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12x18x1 Air Filter Standard Pleated Furnace AC Filtro de aire 1-filter HDX
12x18x1 Air Filter Standard Pleated Furnace AC Filtro de aire 1-filter HDX

$10.99

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True Blue EZ Flow Spun Fiberglass Furnace Filters, Case of 12, All Sizes
True Blue EZ Flow Spun Fiberglass Furnace Filters, Case of 12, All Sizes

$51.89

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12x18x1 (11 1/2 x 17 1/2 x 3/4) Furnace Air Filters 10 Pleated Plus Carbon 2 ...
12x18x1 (11 1/2 x 17 1/2 x 3/4) Furnace Air Filters 10 Pleated Plus Carbon 2 ...

$58.69

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12x18x1 (11 1/2 x 17 1/2 x 3/4) Furnace Air Filters 10 Pleated Plus Carbon 2 ...
12x18x1 (11 1/2 x 17 1/2 x 3/4) Furnace Air Filters 10 Pleated Plus Carbon 2 ...

$58.69

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1 PACK or 4 PACK- Air Filter Allergen Plus Pleated FPR 7 Dust Filters Furnace AC
1 PACK or 4 PACK- Air Filter Allergen Plus Pleated FPR 7 Dust Filters Furnace AC

$39.72

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12x18x1 air filter 3 For $45
12x18x1 air filter 3 For $45

$17.50

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The best Air Filter PERMANENT, WASHABLE, and REUSABLE FURNACE AC in All SIZES
The best Air Filter PERMANENT, WASHABLE, and REUSABLE FURNACE AC in All SIZES

$88.32

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Nordic Pure 12x18x1 Pleated MERV 8 Air Filters 2 Pack
Nordic Pure 12x18x1 Pleated MERV 8 Air Filters 2 Pack

$32.99

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

$44.95

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Glasfloss 12x18x1 - MERV 10 - (Qty:4) Pleated AC Air Furnace Filter Made in USA
Glasfloss 12x18x1 - MERV 10 - (Qty:4) Pleated AC Air Furnace Filter Made in USA

$59.99

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Nordic Pure 12" x 18" x 1" Pleated MERV 12 Air Filters (6 Pack)
Nordic Pure 12" x 18" x 1" Pleated MERV 12 Air Filters (6 Pack)

$55.00

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1 OR 4 Filters - Air Filter Superior Pleated FPR 9 Dust Filters Furnace AC
1 OR 4 Filters - Air Filter Superior Pleated FPR 9 Dust Filters Furnace AC

$26.72

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12x18x1 Air Filter Standard Pleated Furnace AC Filtro de aire 1-filter HDX
12x18x1 Air Filter Standard Pleated Furnace AC Filtro de aire 1-filter HDX

$10.99

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12x18x1 (11 1/2 x 17 1/2 x 3/4) Furnace Air Filters 10 Pleated Plus Carbon 2 ...
12x18x1 (11 1/2 x 17 1/2 x 3/4) Furnace Air Filters 10 Pleated Plus Carbon 2 ...

$58.69

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1-Pack Standard Pleated Air Filter 12x18x1, Air Filters Replacement FPR 5 MERV 8
1-Pack Standard Pleated Air Filter 12x18x1, Air Filters Replacement FPR 5 MERV 8

$7.55

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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

$7.88

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Filters Fast 12x18x1 MERV 13, 1 Inch Pleated HVAC AC Furnace Air Filters, 6 Pack
Filters Fast 12x18x1 MERV 13, 1 Inch Pleated HVAC AC Furnace Air Filters, 6 Pack

$82.99

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Filters Fast 12x18x1 Pleated Air Filter (6 Pack), Merv 11 | 1" AC Furnace
Filters Fast 12x18x1 Pleated Air Filter (6 Pack), Merv 11 | 1" AC Furnace

$76.99

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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

$24.30

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12x18x1 MERV 6 Poly Green AC Furnace Air Filter 4 Pack - Captures Dust/Pollen
12x18x1 MERV 6 Poly Green AC Furnace Air Filter 4 Pack - Captures Dust/Pollen

$40.86

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Filter King 12x18x1 Air Filter 4-PACK MERV 8 Actual Size 11.5 x 17.5 x .75"
Filter King 12x18x1 Air Filter 4-PACK MERV 8 Actual Size 11.5 x 17.5 x .75"

$36.96

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Glasfloss 12x18x1 - MERV 10 - Pack of 12 - Custom Furnace Air Filter - AC Filter
Glasfloss 12x18x1 - MERV 10 - Pack of 12 - Custom Furnace Air Filter - AC Filter

$128.99

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Nordic Pure 12x18x1 Pleated MERV 7 Air Filters 2 Pack
Nordic Pure 12x18x1 Pleated MERV 7 Air Filters 2 Pack

$31.99

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Nordic Pure 12x18x1 Furnace Air Filters MERV 10 Pleated Plus Carbon 2 Pack
Nordic Pure 12x18x1 Furnace Air Filters MERV 10 Pleated Plus Carbon 2 Pack

$39.99

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Electrostatic Filter for Home Furnaces - Washable - Merv 8
Electrostatic Filter for Home Furnaces - Washable - Merv 8

$34.95

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Nordic Pure 12x18x1 Pleated MERV 12 Air Filters 3 Pack
Nordic Pure 12x18x1 Pleated MERV 12 Air Filters 3 Pack

$42.99

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Nordic Pure 12x18x1 Pleated MERV 10 Air Filters 3 Pack
Nordic Pure 12x18x1 Pleated MERV 10 Air Filters 3 Pack

$41.99

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Nordic Pure 12x18x1 Pleated MERV 8 Air Filters 3 Pack
Nordic Pure 12x18x1 Pleated MERV 8 Air Filters 3 Pack

$40.99

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Aerostar 12x18x1 MERV 13 Air Filter, 6 Pack (11 1/2" x 17 1/2" x 3/4")
Aerostar 12x18x1 MERV 13 Air Filter, 6 Pack (11 1/2" x 17 1/2" x 3/4")

$44.99

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Filterbuy 12x18x1 Pleated Air Filters, Replacement for HVAC AC Furnace (MERV 8)
Filterbuy 12x18x1 Pleated Air Filters, Replacement for HVAC AC Furnace (MERV 8)

$34.99

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Nordic Pure 12x18x1 Pleated MERV 10 Air Filters 2 Pack
Nordic Pure 12x18x1 Pleated MERV 10 Air Filters 2 Pack

$33.99

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Nordic Pure 12x18x1 Pleated Air Filters MERV 7 Plus Carbon 2 Pack
Nordic Pure 12x18x1 Pleated Air Filters MERV 7 Plus Carbon 2 Pack

$36.99

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Nordic Pure 12x18x1 Furnace Air Filters MERV 12 Pleated Plus Carbon 2 Pack
Nordic Pure 12x18x1 Furnace Air Filters MERV 12 Pleated Plus Carbon 2 Pack

$40.49

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Nordic Pure 12x18x1 Pleated MERV 12 Air Filters 2 Pack
Nordic Pure 12x18x1 Pleated MERV 12 Air Filters 2 Pack

$34.99

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12x18x1 MERV 11 HVAC/Furnace pleated air filter (12)
12x18x1 MERV 11 HVAC/Furnace pleated air filter (12)

$109.99

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Nordic Pure 12x18x1 Pleated MERV 7 Air Filters 3 Pack
Nordic Pure 12x18x1 Pleated MERV 7 Air Filters 3 Pack

$39.99

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Nordic Pure 12x18x1 Pleated MERV 7 Air Filters 4 Pack
Nordic Pure 12x18x1 Pleated MERV 7 Air Filters 4 Pack

$42.99

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Nordic Pure 12x18x1 Pleated MERV 13 Air Filters 2 Pack
Nordic Pure 12x18x1 Pleated MERV 13 Air Filters 2 Pack

$36.99

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Nordic Pure 12x18x1 Furnace Air Filters MERV 8 Pleated Plus Carbon 2 Pack
Nordic Pure 12x18x1 Furnace Air Filters MERV 8 Pleated Plus Carbon 2 Pack

$38.99

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Nordic Pure 12x18x1 Pure Carbon Pleated Odor Reduction Furnace Filters 2 Pack
Nordic Pure 12x18x1 Pure Carbon Pleated Odor Reduction Furnace Filters 2 Pack

$37.99

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Nordic Pure 12x18x1 Pleated Air Filters MERV 13 Plus Carbon 2 Pack
Nordic Pure 12x18x1 Pleated Air Filters MERV 13 Plus Carbon 2 Pack

$40.99

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Nordic Pure 12x18x1 Pleated MERV 13 Air Filters 3 Pack
Nordic Pure 12x18x1 Pleated MERV 13 Air Filters 3 Pack

$44.99

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Nordic Pure 12x18x1 Furnace Air Filters MERV 10 Pleated Plus Carbon 3 Pack
Nordic Pure 12x18x1 Furnace Air Filters MERV 10 Pleated Plus Carbon 3 Pack

$52.99

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12x18x1 MERV 6 Poly Green AC Furnace Air Filter 24 Pack - Captures Dust/Pollen
12x18x1 MERV 6 Poly Green AC Furnace Air Filter 24 Pack - Captures Dust/Pollen

$155.95

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Filterbuy 12x18x1 Pleated Air Filters, Replacement for HVAC AC Furnace (MERV 13)
Filterbuy 12x18x1 Pleated Air Filters, Replacement for HVAC AC Furnace (MERV 13)

$35.54

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Nordic Pure 12x18x1 Furnace Air Filters MERV 8 Pleated Plus Carbon 3 Pack
Nordic Pure 12x18x1 Furnace Air Filters MERV 8 Pleated Plus Carbon 3 Pack

$51.99

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Nordic Pure 12x18x1 Pleated Air Filters MERV 7 Plus Carbon 3 Pack
Nordic Pure 12x18x1 Pleated Air Filters MERV 7 Plus Carbon 3 Pack

$45.99

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Nordic Pure 12x18x1 Furnace Air Filters MERV 12 Pleated Plus Carbon 4 Pack
Nordic Pure 12x18x1 Furnace Air Filters MERV 12 Pleated Plus Carbon 4 Pack

$59.99

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Glasfloss GDS 12x18x1 Disposable Fiberglass Panel Air Filters. 12 Pack
Glasfloss GDS 12x18x1 Disposable Fiberglass Panel Air Filters. 12 Pack

$73.97

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Nordic Pure 12x18x1 Pleated MERV 14 Air Filters 2 Pack
Nordic Pure 12x18x1 Pleated MERV 14 Air Filters 2 Pack

$37.99

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Filter King 12x18x1 Air Filter 6-PACK MERV 8 Actual Size 11.5 x 17.5 x .75"
Filter King 12x18x1 Air Filter 6-PACK MERV 8 Actual Size 11.5 x 17.5 x .75"

$60.30

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Filter King 12x18x1 Air Filter 4-PACK MERV 13 Actual Size 12 x 18 x .75"
Filter King 12x18x1 Air Filter 4-PACK MERV 13 Actual Size 12 x 18 x .75"

$65.19

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Filter King 12x18x1 Air Filter 6-PACK MERV 13 Actual Size 12 x 18 x .75"
Filter King 12x18x1 Air Filter 6-PACK MERV 13 Actual Size 12 x 18 x .75"

$86.19

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Filter King 12x18x1 Air Filter 12-PACK MERV 8 Actual Size 11.5 x 17.5 x .75"
Filter King 12x18x1 Air Filter 12-PACK MERV 8 Actual Size 11.5 x 17.5 x .75"

$89.99

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