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10 Best A C Filters 2025 in the United States

From leading brands and best sellers available on the web.

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EconoHome

EconoHome

6%OFF

EconoHome 20x25x4 AC Furnace Pleated Air Filter MERV 11 Replacement – Allergen Defense, 2 Pack, Fits Lennox (X6673), Honeywell (FC100A1037) filters. (Actual size: 19.94 x 24.86 x 4.36 Inches)

#1

Winner

Filtrete 2

Filtrete

Filtrete 20x20x1 Air Filter, MPR 300, MERV 5, Clean Living Basic Dust 3-Month Pleated 1-Inch Air Filters, 6 Filters

Sponsored

EconoHome

EconoHome

6%OFF

EconoHome 20x25x4 AC Furnace Pleated Air Filter MERV 11 Replacement – Allergen Defense, 2 Pack, Fits Lennox (X6673), Honeywell (FC100A1037) filters. (Actual size: 19.94 x 24.86 x 4.36 Inches)

#2
AprilAire

Aprilaire

AprilAire 210 Replacement Filter for AprilAire Whole House Air Purifiers - MERV 11, Clean Air & Dust, 20x25x4 Air Filter (Pack of 1)

#3
Filterbuy

Filterbuy

Filterbuy 20x20x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 x 19.50 x 0.75 Inches)

#4
Filtrete 2

Filtrete

Filtrete 20x25x4 Air Filter, MPR 1000, MERV 11, Allergen Defense 12-Month Deep Pleated 4-Inch Air Filters, 2 Filters

#5
Umlecoa 8/

Umlecoa

Umlecoa 8/16/32 Pack Rite-Size C Filter Cartridges for Marineland Penguin PRO Power Filters 275/375 & Original Penguin Power Filters 200/350 - Rite-Size C Replacement Filter Cartridges for MarineLand

#6
Culligan W

Culligan

Culligan WH-HD200-C Whole House Heavy Duty 1" Inlet/Outlet Filtration System

#7
Honeywell

Honeywell

Honeywell C Replacement Filter, White

#8
ELXXROONM

ELXXROONM

ELXXROONM 12 Pack Rite-Size C Filter Cartridges Compatible with Marineland Penguin PRO Power Filters 275/375 & Original Penguin Power Filters 200/350 - Rite-Size C Replacement Filter Cartridges

#9
Replacemen

isinlive

Replacement Filter C for Idylis IAF-H-100C, IAP-10-200, IAP-10-280, 2 Pack Type C True Hepa Filter & 2 Activated Carbon Pre-Filter)

#10
GermGuardi

GermGuardian

GermGuardian Filter C Pet Pure HEPA Genuine Air Purifier Replacement Filter, Removes 99.97% of Pollutants, for AC5000, AC5250, AC5300, AC5350, CDAP5500, AP2800, 2-Pack, Black/Purple, FLT5250PT2PK

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