18x20x1-air-filter-merv-11

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Aerostar 18x20x1 MERV 11 Furnace Air Filter, 6 Pack
Aerostar 18x20x1 MERV 11 Furnace Air Filter, 6 Pack

$45.19

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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)

$34.26

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Aerostar 18x20x1 MERV 11 Pleated Air Filter, AC Furnace Air Filter, 6 Pack
Aerostar 18x20x1 MERV 11 Pleated Air Filter, AC Furnace Air Filter, 6 Pack

$37.00

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18x20x1 AC and Furnace Air Filter by Aerostar - MERV 11, Box of 12
18x20x1 AC and Furnace Air Filter by Aerostar - MERV 11, Box of 12

$93.84

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NEW 4 Pack, Aerostar 18x20x1 MERV 11 Furnace Air Filter, 4 Pack
NEW 4 Pack, Aerostar 18x20x1 MERV 11 Furnace Air Filter, 4 Pack

$11.99

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Aerostar 18X20X1 MERV 11 AC Furnace Air Filter 6 Pack
Aerostar 18X20X1 MERV 11 AC Furnace Air Filter 6 Pack

$19.99

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Aerostar 18x20x1 MERV 11 Pleated AC Furnace Filter 6pk Act Size 17.75x19.75x0.75
Aerostar 18x20x1 MERV 11 Pleated AC Furnace Filter 6pk Act Size 17.75x19.75x0.75

$69.07

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18x20x1 MERV 11 Air Filter 6 Pack for HVAC Pet DUST Allergy Control
18x20x1 MERV 11 Air Filter 6 Pack for HVAC Pet DUST Allergy Control

$50.13

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Proairtek AF18201M11SWH MERV11 18x20x1 Air Filter, Residential & Commercial Use
Proairtek AF18201M11SWH MERV11 18x20x1 Air Filter, Residential & Commercial Use

$12.99

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18x20x1 AC and Furnace Air Filter by Aerostar - MERV 11, Box of 6
18x20x1 AC and Furnace Air Filter by Aerostar - MERV 11, Box of 6

$44.99

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MERV 11 18x20x1 Air Filter 6-Pack - Allergen Defense AC Furnace Filters
MERV 11 18x20x1 Air Filter 6-Pack - Allergen Defense AC Furnace Filters

$69.41

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Filtrete 18x20x1 AC Furnace Air Filter, MERV 11, MPR 1000, Micro Allergen 1-Inch
Filtrete 18x20x1 AC Furnace Air Filter, MERV 11, MPR 1000, Micro Allergen 1-Inch

$55.61

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18x20x1 AC and Furnace Air Filter by Aerostar - MERV 11, Box of 2
18x20x1 AC and Furnace Air Filter by Aerostar - MERV 11, Box of 2

$35.90

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NEW 6 Pack, Aerostar 18x20x1 MERV 11 Furnace Air Filter, 6 Pack
NEW 6 Pack, Aerostar 18x20x1 MERV 11 Furnace Air Filter, 6 Pack

$17.99

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Aerostar 18x20x1 MERV 11 Furnace Air Filter, 4 Pack
Aerostar 18x20x1 MERV 11 Furnace Air Filter, 4 Pack

$46.27

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Aerostar 18 x 20 x 1 MERV 11 Furnace Air Filter, 6 Pack
Aerostar 18 x 20 x 1 MERV 11 Furnace Air Filter, 6 Pack

$14.99

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Aerostar 18x20x1 MERV 11 Pleated Air Filter, AC Furnace Air Filter, 6 Pack
Aerostar 18x20x1 MERV 11 Pleated Air Filter, AC Furnace Air Filter, 6 Pack

$42.99

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18x20x1 (17.75 x 19.75) MERV 11 Filter
18x20x1 (17.75 x 19.75) MERV 11 Filter

$29.16

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18x20x1 (17.75 x 19.75) MERV 11 Filter (6 Pack)
18x20x1 (17.75 x 19.75) MERV 11 Filter (6 Pack)

$41.24

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18x20x1 (17.75 x 19.75) Accumulair Platinum 1-Inch Filter (MERV 11) (4 Pack)
18x20x1 (17.75 x 19.75) Accumulair Platinum 1-Inch Filter (MERV 11) (4 Pack)

$59.55

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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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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

$39.79

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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

$14.99

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18X20X1 MERV 11 Pleated Home A/C Furnace Air Filter (12-Pack)
18X20X1 MERV 11 Pleated Home A/C Furnace Air Filter (12-Pack)

$110.04

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Simply Filters 18x20x1 MERV 11, MPR 1000, AC Furnace HVAC Air Filter
Simply Filters 18x20x1 MERV 11, MPR 1000, AC Furnace HVAC Air Filter

$29.97

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AIRx HEALTH 18x20x1 MERV 11 Pleated Air Conditioner AC Filters! 6 pack
AIRx HEALTH 18x20x1 MERV 11 Pleated Air Conditioner AC Filters! 6 pack

$42.00

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18x20x1 (17_1/2x19_1/2) Pleated MERV 13 Air Filters 6 Pack
18x20x1 (17_1/2x19_1/2) Pleated MERV 13 Air Filters 6 Pack

$69.99

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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

$65.18

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Filtrete 16X25X1 AC Furnace Air Filter, MERV 11, MPR 1000, Micro Allergen Defens
Filtrete 16X25X1 AC Furnace Air Filter, MERV 11, MPR 1000, Micro Allergen Defens

$74.50

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Proairtek AF18201M11SWH Model MERV11 18x20x1 Air Filters (Pack of 6)
Proairtek AF18201M11SWH Model MERV11 18x20x1 Air Filters (Pack of 6)

$63.88

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18x20x1 MERV 11 Pleated AC Furnace Filter - Case of 6
18x20x1 MERV 11 Pleated AC Furnace Filter - Case of 6

$54.44

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18x20x1 (17_1/2x19_1/2) Nordic Pure Tru Mini Pleat MERV 11 Air Filters 3 Pack
18x20x1 (17_1/2x19_1/2) Nordic Pure Tru Mini Pleat MERV 11 Air Filters 3 Pack

$67.99

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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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Filtrete 18x20x1 MERV 11 AC Furnace Air Filter 4 Pack, Micro Allergen Defense
Filtrete 18x20x1 MERV 11 AC Furnace Air Filter 4 Pack, Micro Allergen Defense

$56.76

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Filtrete 18x20x1 Air Filter MPR 1000 MERV 11, Allergen 4-Pack
Filtrete 18x20x1 Air Filter MPR 1000 MERV 11, Allergen 4-Pack

$44.99

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18x20x1 (17_1/2x19_1/2) Nordic Pure Tru Mini Pleat MERV 11 Air Filters 6 Pack
18x20x1 (17_1/2x19_1/2) Nordic Pure Tru Mini Pleat MERV 11 Air Filters 6 Pack

$108.99

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Filtrete 18x20x1 AC Furnace Air Filter MERV 11 MPR 1000 Micro Allergen Defens...
Filtrete 18x20x1 AC Furnace Air Filter MERV 11 MPR 1000 Micro Allergen Defens...

$120.75

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Proairtek AF18201M11SWH Model MERV11 18x20x1 Air Filters (Pack of 4)
Proairtek AF18201M11SWH Model MERV11 18x20x1 Air Filters (Pack of 4)

$45.88

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by MervFilters, 18x20x1 MERV 11, MPR 1000 Air Filter (6 Pack) - Actual Size 1...
by MervFilters, 18x20x1 MERV 11, MPR 1000 Air Filter (6 Pack) - Actual Size 1...

$56.10

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Aerostar 16 3/8 x 21 1/2 x 1 MERV 11 Pleated Assorted Styles , Pattern Names
Aerostar 16 3/8 x 21 1/2 x 1 MERV 11 Pleated Assorted Styles , Pattern Names

$50.56

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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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Proairtek AF18201M11SWH Model MERV11 18x20x1 Air Filters (Pack of 2)
Proairtek AF18201M11SWH Model MERV11 18x20x1 Air Filters (Pack of 2)

$17.99

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Aerostar 18x20x1 MERV 11 Pleated Air Filter, AC Furnace Air Filter, 6 Pack Size:
Aerostar 18x20x1 MERV 11 Pleated Air Filter, AC Furnace Air Filter, 6 Pack Size:

$69.07

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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

$69.99

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18x20x1 (17_1/2x19_1/2) Nordic Pure Tru Mini Pleat MERV 11 Air Filters 12 Pack
18x20x1 (17_1/2x19_1/2) Nordic Pure Tru Mini Pleat MERV 11 Air Filters 12 Pack

$194.99

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Long-lasting High-Performance Air Filter 18x20x1 - MPR 1000 - MERV 11 - 4-Pack
Long-lasting High-Performance Air Filter 18x20x1 - MPR 1000 - MERV 11 - 4-Pack

$81.99

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Aerostar 18x20x1 MERV 11 Furnace Air Filter , 2 Pack.
Aerostar 18x20x1 MERV 11 Furnace Air Filter , 2 Pack.

$30.00

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Aerostar 18x20x1" MERV 11 Pleated AC Furnace Filters Pack 6
Aerostar 18x20x1" MERV 11 Pleated AC Furnace Filters Pack 6

$34.87

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Premium Pleated Air Filter Set - 4 MERV 11 Filters for HVAC Systems (18x20x1)
Premium Pleated Air Filter Set - 4 MERV 11 Filters for HVAC Systems (18x20x1)

$73.43

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18x20x1 (17_1/2x19_1/2) Pleated MERV 7 Air Filters 12 Pack
18x20x1 (17_1/2x19_1/2) Pleated MERV 7 Air Filters 12 Pack

$94.99

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Nordic Pure 18x20x1 (17 1/2 x 19 1/2 x 3/4) Pleated MERV 8 Air Filters 6 Pack
Nordic Pure 18x20x1 (17 1/2 x 19 1/2 x 3/4) Pleated MERV 8 Air Filters 6 Pack

$38.00

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Aerostar 18x20x1 MERV 11 Furnace Air Filter, 6 Pack
Aerostar 18x20x1 MERV 11 Furnace Air Filter, 6 Pack

$32.00

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KOCH , AIR FILTER , 102-031-015 , 18 X 20 X 1 , MULTI-PLEAT XL8HC **LOT OF 11**
KOCH , AIR FILTER , 102-031-015 , 18 X 20 X 1 , MULTI-PLEAT XL8HC **LOT OF 11**

$45.00

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Filtrete18x20x1 Air Filter MPR1200 MERV 11Allergen Plus Odor Reduction 4 Filters
Filtrete18x20x1 Air Filter MPR1200 MERV 11Allergen Plus Odor Reduction 4 Filters

$98.88

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18x20x1 (17 1/2 x 19 1/2 x 3/4) Tru Mini Pleat MERV 11 AC Furnace Air Filters...
18x20x1 (17 1/2 x 19 1/2 x 3/4) Tru Mini Pleat MERV 11 AC Furnace Air Filters...

$99.42

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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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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

$92.99

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Aerostar 18x20x1 MERV 11 Furnace Air Filter, 6 Pack
Aerostar 18x20x1 MERV 11 Furnace Air Filter, 6 Pack

$30.00

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4-pack 18x20x1 Advanced Air Filter, MPR 1000, MERV 11, Micro Allergen Defense
4-pack 18x20x1 Advanced Air Filter, MPR 1000, MERV 11, Micro Allergen Defense

$81.99

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Filtrete 18 In. x 20 In. x 1 In. 1000 MPR Allergen Defense Furnace Filter, MERV
Filtrete 18 In. x 20 In. x 1 In. 1000 MPR Allergen Defense Furnace Filter, MERV

$21.70

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TruFilter MERV 11 Air Filter Set - 6-Pack for Ultimate Air Quality Protection
TruFilter MERV 11 Air Filter Set - 6-Pack for Ultimate Air Quality Protection

$114.94

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Electrostatic MERV 11 Air Filters 18x20x1 - Dust and Allergy Protection 2-Pack
Electrostatic MERV 11 Air Filters 18x20x1 - Dust and Allergy Protection 2-Pack

$70.34

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Simply by MervFilters, 18x20x1 MERV 11, MPR 1000 Air Filter 6 Pack - Actual Size
Simply by MervFilters, 18x20x1 MERV 11, MPR 1000 Air Filter 6 Pack - Actual Size

$48.98

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Aerostar18x20x1 MERV11 Pleated Air Filter AC Furnace Air Filter 6 Pack Fresh Air
Aerostar18x20x1 MERV11 Pleated Air Filter AC Furnace Air Filter 6 Pack Fresh Air

$65.98

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18" x 20" x 1" Standard Capacity MERV 11 Self-Supported Multi-Pleat Air Filter
18" x 20" x 1" Standard Capacity MERV 11 Self-Supported Multi-Pleat Air Filter

$150.00

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BestAir B1-1820-11-6 18x20 x 1 In. MERV 11 Furnace Filter, 90 Days - Quantity 6
BestAir B1-1820-11-6 18x20 x 1 In. MERV 11 Furnace Filter, 90 Days - Quantity 6

$75.29

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3M FILTRETE 18x30x1 MPR 1200 MERV 11 ALLERGEN DEFENSE AIR FILTER 3 PACK
3M FILTRETE 18x30x1 MPR 1200 MERV 11 ALLERGEN DEFENSE AIR FILTER 3 PACK

$67.99

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MERV 11 Pleated Air Filter 4-Pack - 17 3/4"x19 3/4" for Optimal Air Quality
MERV 11 Pleated Air Filter 4-Pack - 17 3/4"x19 3/4" for Optimal Air Quality

$80.74

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18x20x1 11 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 17...
18x20x1 11 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 17...

$80.06

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Aerostar Merv 11 Pleated Air Filters 18x20x1 Box Of 6. R6
Aerostar Merv 11 Pleated Air Filters 18x20x1 Box Of 6. R6

$25.95

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18x20x1 11 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 17...
18x20x1 11 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 17...

$78.65

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High-Efficiency Pleated Air Filters - 4 Pack, MERV 11 for Ultimate Filtration
High-Efficiency Pleated Air Filters - 4 Pack, MERV 11 for Ultimate Filtration

$70.19

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Air Handler Pleated Air Fiber 18x20x1 MERV 8 6B947. Pack Of 11
Air Handler Pleated Air Fiber 18x20x1 MERV 8 6B947. Pack Of 11

$110.00

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Aerostar 18x20x1 MERV 11 Pleated Air Filter AC Furnace Air Filter 6 Pack Family
Aerostar 18x20x1 MERV 11 Pleated Air Filter AC Furnace Air Filter 6 Pack Family

$82.48

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BestAir B1-1820-11-6 18" x 20" x 1" Allergens Pleated Furnace Filter - 6 Pack
BestAir B1-1820-11-6 18" x 20" x 1" Allergens Pleated Furnace Filter - 6 Pack

$99.89

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AIRx Filters Allergy MERV 11 AC Furnace Pleated Air Filter Replacement Box of 6
AIRx Filters Allergy MERV 11 AC Furnace Pleated Air Filter Replacement Box of 6

$55.99

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High-Efficiency MERV 11 Air Filters - 4 Pack, 17 3/4"x19 3/4" for Allergy Relief
High-Efficiency MERV 11 Air Filters - 4 Pack, 17 3/4"x19 3/4" for Allergy Relief

$62.39

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TruFilter 6-Pack MERV 11 Air Filters for HVAC - Removes Dust, Pet Dander & Odors
TruFilter 6-Pack MERV 11 Air Filters for HVAC - Removes Dust, Pet Dander & Odors

$88.79

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AIRx Filters Allergy MERV 11 AC Furnace Pleated Air Filter Replacement Box of...
AIRx Filters Allergy MERV 11 AC Furnace Pleated Air Filter Replacement Box of...

$92.75

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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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Filters Fast Allergy Air Filters 1 Inch MERV 11 Made in America, 6 Pack
Filters Fast Allergy Air Filters 1 Inch MERV 11 Made in America, 6 Pack

$76.99

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Accumulair Platinum 18x20x1 MERV 11 Air Filters (6 Pack)
Accumulair Platinum 18x20x1 MERV 11 Air Filters (6 Pack)

$91.14

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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 Air Filter, AC Furnace Air Filter, 6 Pack WHK-2 AEROSTAR
18x20x1 MERV 11 Pleated Air Filter, AC Furnace Air Filter, 6 Pack WHK-2 AEROSTAR

$52.17

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Aerostar 18x20x1 MERV 11 Furnace Air Filter, 6 Pack
Aerostar 18x20x1 MERV 11 Furnace Air Filter, 6 Pack

$41.95

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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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Efficient MERV 11 HVAC Air Filter 6-Pack - Pleated Design for Maximum Filtration
Efficient MERV 11 HVAC Air Filter 6-Pack - Pleated Design for Maximum Filtration

$103.99

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Advanced MERV 11 Air Filters - 4-Pack Electrostatic Design for Dust & Allergies
Advanced MERV 11 Air Filters - 4-Pack Electrostatic Design for Dust & Allergies

$88.79

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Filtrete 18x20x1 Air Filter MPR 1000 MERV 11, Allergen 4-Pack,
Filtrete 18x20x1 Air Filter MPR 1000 MERV 11, Allergen 4-Pack,

$65.52

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Aerostar Merv 11 Pleated Air Furnace Filters 18x20x1 Box Of 6 L6
Aerostar Merv 11 Pleated Air Furnace Filters 18x20x1 Box Of 6 L6

$35.00

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AIRx Filters Allergy MERV 11 AC Furnace Pleated Air Filter Replacement Box of...
AIRx Filters Allergy MERV 11 AC Furnace Pleated Air Filter Replacement Box of...

$113.07

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