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10 best4 Inch Furnace Filter Vs 1 Inchof December 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)

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

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)

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

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

9.3

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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.

Everything

9.0

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15% off

7

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

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

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

8.0

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