hvac-air-filters-18x20x1

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Filterbuy 18x20x1 Pleated Air Filters, Replacement for HVAC AC Furnace (MERV 11)
Filterbuy 18x20x1 Pleated Air Filters, Replacement for HVAC AC Furnace (MERV 11)

$163.68

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Filterbuy 18x20x1 Pleated Air Filters, Replacement for HVAC AC Furnace (MERV 8)
Filterbuy 18x20x1 Pleated Air Filters, Replacement for HVAC AC Furnace (MERV 8)

$107.88

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Filterbuy 18x20x1 Pleated Air Filters, Replacement for HVAC AC Furnace (MERV 13)
Filterbuy 18x20x1 Pleated Air Filters, Replacement for HVAC AC Furnace (MERV 13)

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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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18x20x1 Pleated Air Filters Replacement For Furnace. AC HVAC MERV 8 FPR 5 3-Pack
18x20x1 Pleated Air Filters Replacement For Furnace. AC HVAC MERV 8 FPR 5 3-Pack

$14.83

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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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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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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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18x20x1 Pleated Air Filters Replacement For Furnace. AC HVAC MERV 8 FPR 5 3-Pack
18x20x1 Pleated Air Filters Replacement For Furnace. AC HVAC MERV 8 FPR 5 3-Pack

$41.76

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Filters Fast 18x20x1 MERV 8, 1 Inch Pleated HVAC AC Furnace Air Filters, 6 Pack
Filters Fast 18x20x1 MERV 8, 1 Inch Pleated HVAC AC Furnace Air Filters, 6 Pack

$62.99

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K&N 18X20X1 HVAC Furnace Air Filter, Lifetime, Washable, Merv 13, HVC-13-11820
K&N 18X20X1 HVAC Furnace Air Filter, Lifetime, Washable, Merv 13, HVC-13-11820

$89.99

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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

$14.94

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Filterbuy Allergen Odor Eliminator 18x20x1 MERV 8 Pleated AC Furnace Air Filter
Filterbuy Allergen Odor Eliminator 18x20x1 MERV 8 Pleated AC Furnace Air Filter

$132.90

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18x20x1 Air Filter MERV 8 Odor Eliminator (1-Pack), Pleated HVAC AC Furnace Air
18x20x1 Air Filter MERV 8 Odor Eliminator (1-Pack), Pleated HVAC AC Furnace Air

$43.92

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KOCH Filter Multi-Pleat XL8 MERV 8, 18x20x1, Box of 12 Filters
KOCH Filter Multi-Pleat XL8 MERV 8, 18x20x1, Box of 12 Filters

$119.00

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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

$12.90

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Filtrete By 3M 18x20x1 MERV 10 Micro Particle Reduction HVAC Furnace Air Filter
Filtrete By 3M 18x20x1 MERV 10 Micro Particle Reduction HVAC Furnace Air Filter

$59.64

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Pamlico 18x20x1 MERV 11 ( FPR 8-9 ) Pleated Air Filters. Case of 12
Pamlico 18x20x1 MERV 11 ( FPR 8-9 ) Pleated Air Filters. Case of 12

$75.97

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

$88.99

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Filters Fast 18x20x1 MERV 11 Pleated HVAC AC Furnace Air Filters 6 Pack
Filters Fast 18x20x1 MERV 11 Pleated HVAC AC Furnace Air Filters 6 Pack

$76.99

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1" Depth Inch Glasfloss ZL MERV 13 / FPR 10 Pleated HVAC Air Filters. 6 Pack
1" Depth Inch Glasfloss ZL MERV 13 / FPR 10 Pleated HVAC Air Filters. 6 Pack

$57.63

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Filtrete By 3M 18x20x1 MERV 10 Micro Particle Reduction HVAC Furnace Air Filter
Filtrete By 3M 18x20x1 MERV 10 Micro Particle Reduction HVAC Furnace Air Filter

$59.34

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18x20x1 MERV 10 Pleated Air Filters. 12 PACK. Actual Size: 17-1/2 x 19-1/2 x 7/8
18x20x1 MERV 10 Pleated Air Filters. 12 PACK. Actual Size: 17-1/2 x 19-1/2 x 7/8

$71.97

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18X20X1 Pleated Air Filters Replacement For Furnace HVAC AC FPR 5 MERV 8 3-Pack
18X20X1 Pleated Air Filters Replacement For Furnace HVAC AC FPR 5 MERV 8 3-Pack

$19.99

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Filtrete 3M 18x20x1 MERV 11 Allergen Plus Odor Reduction HVAC Furnace Air Filter
Filtrete 3M 18x20x1 MERV 11 Allergen Plus Odor Reduction HVAC Furnace Air Filter

$98.88

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Filters Fast 18x20x1 MERV 13, 1 Inch Pleated HVAC AC Furnace Air Filters, 6 Pack
Filters Fast 18x20x1 MERV 13, 1 Inch Pleated HVAC AC Furnace Air Filters, 6 Pack

$82.99

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Filterbuy 18x20x1 Air Filter MERV 8 Dust Defense (2-Pack), Pleated HVAC AC
Filterbuy 18x20x1 Air Filter MERV 8 Dust Defense (2-Pack), Pleated HVAC AC

$15.00

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18x20x1 Air Filter MERV 11 Allergen Defense (5-Pack), Pleated HVAC AC Furnace Ai
18x20x1 Air Filter MERV 11 Allergen Defense (5-Pack), Pleated HVAC AC Furnace Ai

$80.59

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Nordic Pure 18x20x1 Air Filter, MERV 14, 2 Pack Replacement For Furnace. AC HVAC
Nordic Pure 18x20x1 Air Filter, MERV 14, 2 Pack Replacement For Furnace. AC HVAC

$22.99

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hvac filter 18x20x1
hvac filter 18x20x1

$30.00

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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

$13.95

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Trane FLRSF1185 18x20x1 Air Filters (17.75x19.75x.75 Actual Size) Case of (12)
Trane FLRSF1185 18x20x1 Air Filters (17.75x19.75x.75 Actual Size) Case of (12)

$132.00

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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

$13.95

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CARTER | Gold | MERV 8 | HVAC & Furnace Filter | Lifetime Warranty | Washable El
CARTER | Gold | MERV 8 | HVAC & Furnace Filter | Lifetime Warranty | Washable El

$62.99

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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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Glasfloss ZL 18x20x1 MERV 10 (FPR 7) Pleated Furnace Air Filters. 6 Pack
Glasfloss ZL 18x20x1 MERV 10 (FPR 7) Pleated Furnace Air Filters. 6 Pack

$50.97

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18x20x1 MERV 13 Pleated Air Filters. 12 PACK. Actual Size: 17-1/2 x 19-1/2 x 7/8
18x20x1 MERV 13 Pleated Air Filters. 12 PACK. Actual Size: 17-1/2 x 19-1/2 x 7/8

$89.97

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Glasfloss 18x20x1 - MERV 10 - Pack of 12 - Furnace Air Filter - Made in USA
Glasfloss 18x20x1 - MERV 10 - Pack of 12 - Furnace Air Filter - Made in USA

$112.99

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Glasfloss 18x20x1 - MERV 10 - (Qty: 6) - Pleated Furnace Air Filter Made in USA
Glasfloss 18x20x1 - MERV 10 - (Qty: 6) - Pleated Furnace Air Filter Made in USA

$73.99

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18x20x1 Air Filter Glasfloss GDS Series Disposable - Box of 6
18x20x1 Air Filter Glasfloss GDS Series Disposable - Box of 6

$40.85

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FiltersFast 18x20x1 Merv 11 Air Filters (17.75x19.75x.75 actual) For Hvac
FiltersFast 18x20x1 Merv 11 Air Filters (17.75x19.75x.75 actual) For Hvac

$76.99

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18x20x1 MERV 11 Pleated AC Furnace Air Filters. 6 PACK.. Made in USA.
18x20x1 MERV 11 Pleated AC Furnace Air Filters. 6 PACK.. Made in USA.

$57.97

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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

$9.90

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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

$26.90

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18x20x1 Air Filter Glasfloss GDS Series Disposable - Box of 12
18x20x1 Air Filter Glasfloss GDS Series Disposable - Box of 12

$64.91

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3M Filtrete/HVAC Air Filter Reduces Airborne Dust Allergens Bacteria Viruses MPR
3M Filtrete/HVAC Air Filter Reduces Airborne Dust Allergens Bacteria Viruses MPR

$94.99

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Permatron DustEater DE-1" Permanent Electrostatic Filter Washable HVAC Furnace
Permatron DustEater DE-1" Permanent Electrostatic Filter Washable HVAC Furnace

$107.87

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18x20x1 Permanent Washable Electrostatic HVAC Filter with LIFETIME WARRANTY
18x20x1 Permanent Washable Electrostatic HVAC Filter with LIFETIME WARRANTY

$98.99

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18X20X1 CASE OF (12) AIR FURNACE HVAC FILTERS NEW FAST SHIPPING!!! 6953806
18X20X1 CASE OF (12) AIR FURNACE HVAC FILTERS NEW FAST SHIPPING!!! 6953806

$28.95

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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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18x20x1 MERV 11 HVAC/Furnace pleated air filter (6)
18x20x1 MERV 11 HVAC/Furnace pleated air filter (6)

$78.99

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1085 3M Filtrete-Extra Air-Filter HVAC Furnace Smog Smoke Pollen Dust Allergen
1085 3M Filtrete-Extra Air-Filter HVAC Furnace Smog Smoke Pollen Dust Allergen

$23.77

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(18x20x1) Aluminum Electrostatic Air Filter Replacement Washable Reusable AC
(18x20x1) Aluminum Electrostatic Air Filter Replacement Washable Reusable AC

$63.99

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Aluminum Electrostatic A/C Furnace Filters - Central HVAC Air Purifier
Aluminum Electrostatic A/C Furnace Filters - Central HVAC Air Purifier

$44.99

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A+2006 High Flow Electrostatic Filter Furnace HVAC Geothermal Washable Permanent
A+2006 High Flow Electrostatic Filter Furnace HVAC Geothermal Washable Permanent

$78.88

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Glasfloss 18x20x1 - MERV 10 - (Qty: 4) - Pleated Furnace Air Filter Made in USA
Glasfloss 18x20x1 - MERV 10 - (Qty: 4) - Pleated Furnace Air Filter Made in USA

$55.99

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High-Performance MERV 13 Air Filter 18x20x1, 4-Pack - Pleated HVAC Filters
High-Performance MERV 13 Air Filter 18x20x1, 4-Pack - Pleated HVAC Filters

$67.89

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Simply Filters 18x20x1 MERV 8, MPR 600, Air Filter 6 Pack - Actual Size: HVAC,
Simply Filters 18x20x1 MERV 8, MPR 600, Air Filter 6 Pack - Actual Size: HVAC,

$53.30

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18x20x1 Air Filter MERV 11 Allergen Defense (4-Pack), Pleated HVAC AC Furnace Ai
18x20x1 Air Filter MERV 11 Allergen Defense (4-Pack), Pleated HVAC AC Furnace Ai

$67.76

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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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Pamlico Air 18 in. W X 20 in. H X 1 in. D Fiberglass 4 MERV Air Filter 1 pk
Pamlico Air 18 in. W X 20 in. H X 1 in. D Fiberglass 4 MERV Air Filter 1 pk

$69.21

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Flanders NaturalAire 18x20x1 MERV 8 Pack of 11 Pre Pleat Air Filter Furnace HVAC
Flanders NaturalAire 18x20x1 MERV 8 Pack of 11 Pre Pleat Air Filter Furnace HVAC

$20.99

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MERV8 18 x 20 x 1 � 18x20x1 WASHABLE Pleated HVAC Air Furnace Custom EG8 Filter
MERV8 18 x 20 x 1 � 18x20x1 WASHABLE Pleated HVAC Air Furnace Custom EG8 Filter

$142.95

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18x18x1 MERV 13 Pleated Air Filters. 12 PACK. Actual Size: 17-1/2 x 17-1/2 x 7/8
18x18x1 MERV 13 Pleated Air Filters. 12 PACK. Actual Size: 17-1/2 x 17-1/2 x 7/8

$111.97

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(6 Pack) MERV 8 FMI Pro-Pleat Pleated Filters Furnace HVAC 1" 2" 4" Box Bulk
(6 Pack) MERV 8 FMI Pro-Pleat Pleated Filters Furnace HVAC 1" 2" 4" Box Bulk

$67.84

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18x20x1 Air Filter MERV 8 Odor Eliminator (2-Pack), Pleated HVAC AC Furnace Air
18x20x1 Air Filter MERV 8 Odor Eliminator (2-Pack), Pleated HVAC AC Furnace Air

$58.21

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18x20x1 Air Filter MERV 13 Optimal Defense (2-Pack), Pleated HVAC AC Furnace Air
18x20x1 Air Filter MERV 13 Optimal Defense (2-Pack), Pleated HVAC AC Furnace Air

$44.30

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18x20x1 Air Filter MERV 8 Dust Defense (6-Pack), Pleated HVAC AC Furnace Air Fil
18x20x1 Air Filter MERV 8 Dust Defense (6-Pack), Pleated HVAC AC Furnace Air Fil

$62.24

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18x20x1 Air Filter MERV 8 Dust Defense (5-Pack), Pleated HVAC AC Furnace Air Fil
18x20x1 Air Filter MERV 8 Dust Defense (5-Pack), Pleated HVAC AC Furnace Air Fil

$57.17

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Filtrete Furnace AC Air Filter 18 X 20 X 1 QTY 4
Filtrete Furnace AC Air Filter 18 X 20 X 1 QTY 4

$32.99

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18X20X1 Superior Pleated Air Filters Replacement For Furnace, FPR 9 MERV 12 HVAC
18X20X1 Superior Pleated Air Filters Replacement For Furnace, FPR 9 MERV 12 HVAC

$27.60

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18x20x1 Air Filter MERV 13 Optimal Defense (5-Pack), Pleated HVAC AC Furnace Air
18x20x1 Air Filter MERV 13 Optimal Defense (5-Pack), Pleated HVAC AC Furnace Air

$92.77

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HVAC FILTERS 20X20X1 20X20X2 20X25X1 20X25X2 16X20X1 16X20X2 14x20x1 18x20x1 6PK
HVAC FILTERS 20X20X1 20X20X2 20X25X1 20X25X2 16X20X1 16X20X2 14x20x1 18x20x1 6PK

$30.00

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Filterbuy 18x20x1 Air Filter MERV 8 Dust Defense (6-Pack), Pleated HVAC AC Furna
Filterbuy 18x20x1 Air Filter MERV 8 Dust Defense (6-Pack), Pleated HVAC AC Furna

$45.00

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2- PACK 18x20x1 Air Filters, Pleated Replacement for HVAC AC Furnace (MERV 8) n
2- PACK 18x20x1 Air Filters, Pleated Replacement for HVAC AC Furnace (MERV 8) n

$26.00

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Washable Electrostatic HVAC Furnace Air Filter, 6 Stage Permanent Air Filter
Washable Electrostatic HVAC Furnace Air Filter, 6 Stage Permanent Air Filter

$59.77

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PAMLICO AIR 18 in. W X 20 in. H X 1 in. D Fiberglass 4 MERV Air Filter 12pk
PAMLICO AIR 18 in. W X 20 in. H X 1 in. D Fiberglass 4 MERV Air Filter 12pk

$69.95

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Filterbuy 18X20X1 Air Filter MERV 8 Dust Defense (6-Pack), Pleated HVAC AC Furna
Filterbuy 18X20X1 Air Filter MERV 8 Dust Defense (6-Pack), Pleated HVAC AC Furna

$59.07

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AAF Flanders PREpleat LPD MERV 8 Standard Capacity HVAC Filters (12 Filters)
AAF Flanders PREpleat LPD MERV 8 Standard Capacity HVAC Filters (12 Filters)

$120.99

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NaturalAire Standard MERV 8 Furnace, AC and HVAC Filters (12 pack)
NaturalAire Standard MERV 8 Furnace, AC and HVAC Filters (12 pack)

$111.99

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Pamlico Air 18 in. W X 20 in. H X 2 in. D Fiberglass 4 MERV Air Filter 1 pk
Pamlico Air 18 in. W X 20 in. H X 2 in. D Fiberglass 4 MERV Air Filter 1 pk

$68.95

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AIRx Filters Allergy 18x20x1 Air Filter MERV 11 AC Furnace Pleated Air Filter
AIRx Filters Allergy 18x20x1 Air Filter MERV 11 AC Furnace Pleated Air Filter

$90.69

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Filterbuy 18X20X1 Air Filter MERV 8 Dust Defense (12-Pack), Pleated HVAC AC Furn
Filterbuy 18X20X1 Air Filter MERV 8 Dust Defense (12-Pack), Pleated HVAC AC Furn

$120.07

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AAF Flanders PREpleat MERV 13 Furnace, AC and HVAC Filters (12 Filters)
AAF Flanders PREpleat MERV 13 Furnace, AC and HVAC Filters (12 Filters)

$270.24

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AAF Flanders PREpleat LPD MERV 8 High Capacity HVAC Air Filters (12 Filters)
AAF Flanders PREpleat LPD MERV 8 High Capacity HVAC Air Filters (12 Filters)

$129.99

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AIR HANDLER AC FURNACE Basic Flat Air Filter HVAC Replacement Pad 2 Pk MERV 2
AIR HANDLER AC FURNACE Basic Flat Air Filter HVAC Replacement Pad 2 Pk MERV 2

$20.35

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AIRX FILTERS WICKED CLEAN AIR 18x20x1 Air Filter MERV 11 Pleated HVAC 6Pack
AIRX FILTERS WICKED CLEAN AIR 18x20x1 Air Filter MERV 11 Pleated HVAC 6Pack

$72.00

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Simply filters Assorted Size MERV 8 Replacement Furnace HVAC Air Filter, 6 Pack
Simply filters Assorted Size MERV 8 Replacement Furnace HVAC Air Filter, 6 Pack

$62.81

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18x20x1 MERV 8 Pleated AC Furnace Air Filters. 12 Pack
18x20x1 MERV 8 Pleated AC Furnace Air Filters. 12 Pack

$78.97

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