Furnace Air Filter Sizes
Biodefensor Blue 20x30x1 Washable Reusable Furnace Filter
Uncategorized
$21.95
$29.99
Save $8.04Available at 2 stores
Accumulair Gold Electrostatic Furnace Air Filter 4-Pack
Uncategorized
$23.49
$41.89
Save $18.40Available at 4 stores
BestAir 16x25x4 MERV 11 Furnace Air Filter
Uncategorized
$19.99
$108.99
Save $89.00Available at 10 stores
Accumulair Gold Electrostatic Furnace Air Filter 4-Pack
Uncategorized
$19.99
$36.79
Save $16.80Available at 3 stores
16x24 Fiberglass Furnace Air Filter Pack of 12
Uncategorized
$3.14
$71.38
Save $68.24Available at 6 stores
Filterbuy MERV 11 Pleated HVAC Furnace Air Filter, 10x17x2
Uncategorized
$28.44
Available at 2 stores
Filtrete 16x25x1 Ultra Allergen Pleated Furnace Air Filter
Uncategorized
$16.99
$121.88
Save $104.89Available at 15 stores
BestAir 16x27x6 MERV 11 Pleated Furnace Air Filter 2-Pack
Uncategorized
$29.99
$138.86
Save $108.87Available at 14 stores
Dometic Brisk Air II Furnace Filter Pack of 2
Uncategorized
$24.88
$45.01
Save $20.13Available at 4 stores
Colorfil 16x25x1 Pink Pleated Furnace Air Filter, MERV 8, 2-Pack
Uncategorized
$30.39
$42.99
Save $12.60Available at 3 stores
TechPure 20x25x4 MERV 11 Furnace Air Filter
Uncategorized
$45.99
$53.99
Save $8.00Available at 2 stores
16x25x4 White Pleated Furnace Air Filter
Uncategorized
$10.29
$47.84
Save $37.55Available at 10 stores
Filtrete 20x25x1 White Electrostatic Furnace Air Filter
Uncategorized
$33.99
$67.92
Save $33.93Available at 3 stores
16x25x1 Fiberglass Furnace Air Filter with Double-Strut Craftboard Support
Uncategorized
$35.68
$47.97
Save $12.29Available at 2 stores
14x25x1 Pink Color-Changing Pet-Friendly Furnace Air Filter, Pack of 6
Uncategorized
$34.19
$89.99
Save $55.80Available at 3 stores
BestAir 20x25x6 MERV 11 High Efficiency Furnace Air Filter
Uncategorized
$24.99
$69.99
Save $45.00Available at 11 stores
AprilAire MERV 11 Clean Air Furnace Filter Single Pack
Uncategorized
$56.99
$190.99
Save $134.00Available at 6 stores
Filterbuy 16x28x6 MERV 11 Pleated HVAC Furnace Air Filter
Uncategorized
$59.77
$60.97
Save $1.20Available at 3 stores
Filtrete 14x25x1 MPR 1000 Allergen Defense Furnace Air Filter, 4-Pack
Uncategorized
$37.38
$73.70
Save $36.32Available at 9 stores
20x20x5 Honeywell/Lennox MERV 12 Furnace Air Filter
Uncategorized
$26.99
$43.35
Save $16.36Available at 5 stores
Aerostar 20x20x1 MERV 8 Pleated Furnace Air Filter, 6 Pack
Uncategorized
$35.85
$58.10
Save $22.25Available at 3 stores
Premium Frameless 20x25x6 Spun Glass Furnace Air Filter Pack
Uncategorized
$55.99
$97.45
Save $41.46Available at 4 stores
Flanders 12" x 12" x 1" Glass Furnace Air Filter Pack
Uncategorized
$7.48
$27.49
Save $20.01Available at 2 stores
Filtrete 20x25x4 Micro Allergen Defense Furnace Air Filter 2-Pack
Uncategorized
$42.09
$59.95
Save $17.86Available at 2 stores
Filtrete 16x25x4 White Allergen Defense Furnace Air Filter
Uncategorized
$24.88
$60.24
Save $35.36Available at 5 stores
Arm & Hammer 18x18x1 Maximum Odor Reduction Furnace Air Filter, 4-Pack
Uncategorized
$46.87
$112.19
Save $65.32Available at 5 stores
Accumulair Diamond 12x12x1 MERV 13 Furnace Air Filter, 6-Pack
Uncategorized
$20.50
$141.35
Save $120.85Available at 5 stores
Filter King 20x35x2 MERV 13 Pleated Furnace Air Filters, 4-Pack
Uncategorized
$119.00
Available at 2 stores
EZ Flow II 24x24x1 Fiberglass Furnace Air Filter
Uncategorized
$2.56
$112.44
Save $109.88Available at 11 stores
Filtrete 20x30x1 MERV 12 Electrostatic Furnace Air Filter, 2-Pack
Uncategorized
$34.99
$114.24
Save $79.25Available at 2 stores
Honeywell Home 16x25x4 MERV 8 Electrostatic Furnace Air Filter
Uncategorized
$30.97
$58.99
Save $28.02Available at 2 stores
Aerostar 16x16x1 MERV 13 AC and Furnace Air Filter, 6 Pack
Uncategorized
$43.84
$60.69
Save $16.85Available at 2 stores
Aerostar 20x25x1 MERV 11 Pleated AC Furnace Air Filter, 6 Pack
Uncategorized
$43.91
$61.64
Save $17.73Available at 2 stores
Aerostar 16x16x1 MERV 11 AC and Furnace Air Filter, 6 Pack
Uncategorized
$24.16
$68.15
Save $43.99Available at 2 stores
Aerostar 14x14x1 MERV 8 Pleated AC Furnace Air Filter, 6 Pack
Uncategorized
$29.95
$54.95
Save $25.00Available at 3 stores
Simply Filters 16x25x1 MERV 8 AC Furnace Air Filter 6 Pack
Uncategorized
$31.83
$84.99
Save $53.16Available at 7 stores
Aerostar 16x25x1 MERV 13 Pleated Furnace Air Filter 6-Pack
Uncategorized
$28.77
$90.82
Save $62.05Available at 4 stores
16 x 25 x 1 Allergen Plus Pleated Furnace Air Filter
Uncategorized
$18.35
$34.78
Save $16.43Available at 2 stores
Filterbuy 16x28x6 MERV 8 Pleated HVAC Furnace Air Filters 2-Pack
Uncategorized
$73.73
$75.20
Save $1.47Available at 3 stores
Honeywell 16 x 25 x 4 MERV 11 Furnace Air Filter
Uncategorized
$34.12
$214.95
Save $180.83Available at 15 stores
Filtrete 16x24x1 Allergen Defense MPR 1000 Air Filter
Uncategorized
$13.44
$42.88
Save $29.44Available at 8 stores
BestAir 16x25x4 MERV 13 Furnace Filter for Honeywell
Uncategorized
$29.99
$127.05
Save $97.06Available at 10 stores
BestAir 20x20x4 MERV 8 Furnace Filter for Honeywell, Pack of 1
Uncategorized
$19.68
$83.99
Save $64.31Available at 9 stores
BestAir 20x25x4 MERV 11 Furnace Filter for Honeywell
Uncategorized
$17.99
$86.37
Save $68.38Available at 8 stores
Castle One-Year HVAC Furnace Filter MERV 6, 16 x 25 x 1
Uncategorized
$29.04
$44.50
Save $15.46Available at 2 stores
16x20x1 Blue Fiberglass Disposable Furnace Filter Pack of 12
Uncategorized
$37.08
$55.80
Save $18.72Available at 3 stores
Black Foam Mobile Home Furnace Door Filter 16" x 26" x 1/4"
Uncategorized
$12.41
$28.99
Save $16.58Available at 4 stores
16x20x1 Washable Reusable Aluminum Electrostatic Furnace Filter
Uncategorized
$37.99
$61.98
Save $23.99Available at 2 stores
BestAir 20x25x6 MERV 11 Furnace Filter for Aprilaire & SpaceGard
Uncategorized
$23.22
$85.58
Save $62.36Available at 13 stores