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10 best4 Inch Furnace Filter Vs 1 Inchof November 2024

112M consumers helped this year.

1

Vent Filters for Home, Air Vent Filters (4"x10") Engineer for Floor Vent Filters (24 Filters)

Vent Filters for Home, Air Vent Filters (4"x10") Engineer for Floor Vent Filters (24 Filters)

Vent Filters for Home, Air Vent Filters (4"x10") Engineer for Floor Vent Filters (24 Filters)

NORTHWEST ENTERPRISES

9.9

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2

AprilAire 401 Replacement Furnace Filter for AprilAire 2400, Space-Gard 2400 Whole-House Air Purifiers - MERV 10, 16x25x6 Air Filter (Pack of 2)

AprilAire 401 Replacement Furnace Filter for AprilAire 2400, Space-Gard 2400 Whole-House Air Purifiers - MERV 10, 16x25x6 Air Filter (Pack of 2)

AprilAire 401 Replacement Furnace Filter for AprilAire 2400, Space-Gard 2400 Whole-House Air Purifiers - MERV 10, 16x25x6 Air Filter (Pack of 2)

Aprilaire

9.8

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5% off

3

Filtrete Air Filters, MPR 2200 1" Premium Furnace Filters, 4-pack (20 x 25 x 1)

Filtrete Air Filters, MPR 2200 1" Premium Furnace Filters, 4-pack (20 x 25 x 1)

Filtrete Air Filters, MPR 2200 1" Premium Furnace Filters, 4-pack (20 x 25 x 1)

Generic

9.7

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4

12x24x1 | Trophy Air | Merv 8 | Washable Furnace Filter | Lifetime HVAC & Furnace Air Filter | Washable Electrostatic | High Dust Holding Capacity | Premium Quality Aluminum

12x24x1 | Trophy Air | Merv 8 | Washable Furnace Filter | Lifetime HVAC & Furnace Air Filter | Washable Electrostatic | High Dust Holding Capacity | Premium Quality Aluminum

12x24x1 | Trophy Air | Merv 8 | Washable Furnace Filter | Lifetime HVAC & Furnace Air Filter | Washable Electrostatic | High Dust Holding Capacity | Premium Quality Aluminum

Trophy Air

9.5

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5

United Filter 16x25x4 MERV 10 Furnace Air Filters (Case of 3) - HVAC Filters Captures Pollen, Mould, Bacteria & Smoke - Replacement Air Filters Made in Canada

United Filter 16x25x4 MERV 10 Furnace Air Filters (Case of 3) - HVAC Filters Captures Pollen, Mould, Bacteria & Smoke - Replacement Air Filters Made in Canada

United Filter 16x25x4 MERV 10 Furnace Air Filters (Case of 3) - HVAC Filters Captures Pollen, Mould, Bacteria & Smoke - Replacement Air Filters Made in Canada

United Filter

9.3

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OtherRelated products

20"W x 10"H [Duct Opening Measurements] Steel Return Air Filter Grille [Removable Door] for 1-inch Filters | Vent Cover Grill, White | Outer Dimensions: 22 5/8"W X 12 5/8"H for 20x10 Duct Opening

20"W x 10"H [Duct Opening Measurements] Steel Return Air Filter Grille [Removable Door] for 1-inch Filters | Vent Cover Grill, White | Outer Dimensions: 22 5/8"W X 12 5/8"H for 20x10 Duct Opening

Castle Filters One-Year HVAC Furnace Filter, MERV 6, 14x30x1, 1 Count (Pack of 1)

Castle Filters One-Year HVAC Furnace Filter, MERV 6, 14x30x1, 1 Count (Pack of 1)

Furnace/Air Handler/HVAC Air Filter Media Roll, Orange/White MERV8 Polyester Media - 1 inch x 25 inch x 5 foot - Cut to Size

Furnace/Air Handler/HVAC Air Filter Media Roll, Orange/White MERV8 Polyester Media - 1 inch x 25 inch x 5 foot - Cut to Size

OlitAir 20x25x1 MERV 8 Air Filter,AC Furnace Air Filter,Reusable ABS Plastic Frame, 7 Pack Replaceable Filter Media (Actual Size: 19 3/4" x 24 3/4" x 3/4")

OlitAir 20x25x1 MERV 8 Air Filter,AC Furnace Air Filter,Reusable ABS Plastic Frame, 7 Pack Replaceable Filter Media (Actual Size: 19 3/4" x 24 3/4" x 3/4")

14% off

6

Furnace AC Register Dust Control Vent Filters - Pack of 24 | Helps Trap Dirt, Dust, Smoke, Pollen Size Particles | Provides Fresh, Filtered Air | for Bathrooms, Bedrooms, Kitchen, Family Rooms.

Furnace AC Register Dust Control Vent Filters - Pack of 24 | Helps Trap Dirt, Dust, Smoke, Pollen Size Particles | Provides Fresh, Filtered Air | for Bathrooms, Bedrooms, Kitchen, Family Rooms.

Furnace AC Register Dust Control Vent Filters - Pack of 24 | Helps Trap Dirt, Dust, Smoke, Pollen Size Particles | Provides Fresh, Filtered Air | for Bathrooms, Bedrooms, Kitchen, Family Rooms.

Everything

9.0

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15% off

7

Honeywell Media Air Cleaner F100f1625 -16x25

Honeywell Media Air Cleaner F100f1625 -16x25

Honeywell Media Air Cleaner F100f1625 -16x25

Honeywell

8.8

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8

Castle Filters One-Year HVAC Furnace Filter, MERV 8, 20x25x1, 1 Count (Pack of 1)

Castle Filters One-Year HVAC Furnace Filter, MERV 8, 20x25x1, 1 Count (Pack of 1)

Castle Filters One-Year HVAC Furnace Filter, MERV 8, 20x25x1, 1 Count (Pack of 1)

Castle Filters

8.5

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9

True Blue 312251.4 Allergen 12-Inch by 25-Inch by 1-Inch Air Filter, 4-Pack

True Blue 312251.4 Allergen 12-Inch by 25-Inch by 1-Inch Air Filter, 4-Pack

True Blue 312251.4 Allergen 12-Inch by 25-Inch by 1-Inch Air Filter, 4-Pack

True Blue

8.2

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10

Wingman1 Electronic Air Filter with 1-Yr Supply of Air Purifier Pads - HVAC, Heater, Air Return, Furnace Filters for House - Air Conditioner Replacement Filters - Easy Homeowner Installed - 20x20x1

Wingman1 Electronic Air Filter with 1-Yr Supply of Air Purifier Pads - HVAC, Heater, Air Return, Furnace Filters for House - Air Conditioner Replacement Filters - Easy Homeowner Installed - 20x20x1

Wingman1 Electronic Air Filter with 1-Yr Supply of Air Purifier Pads - HVAC, Heater, Air Return, Furnace Filters for House - Air Conditioner Replacement Filters - Easy Homeowner Installed - 20x20x1

WINGMAN1

8.0

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