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Furnace Air Filters

True Blue
25 In. x 25 In. x 1 In. Merv 2 Fiberglass Furnace Filter

$7.49 As low as $7.12

AF25251
BestAir
24 In. x 24 In. x 2 In. MERV 8 Pleated Furnace Filter

$14.49 As low as $13.77

AF24242PE
Do it Best
24 In. x 24 In. x 1 In. MERV 8 Furnace Filter

$7.29 As low as $6.93

AF24241M8
Purafilter
24 In. x 1/4 In. Washable Foam Filter (per foot)

$3.49 / FT As low as $2.62 / FT

AF2414PF
True Blue
20 In. x 30 In. x 1 In. MERV 4 Trimmable Air Filter

$21.99 As low as $20.89

AF20301WA
NaturalAire 20 In. x 30 In. x 1 In. Natural Fiber MERV 4 Trimmable Air Filter

$15.99 As low as $14.39

AF20301NF
Do it Best
20 In. x 30 In. x 1 In. MERV 8 Furnace Filter

$7.29 As low as $6.93

AF20301M8
AAF
120301 Air Filter, 30 in L, 20 in W, Chipboard Frame

$4.99 As low as $4.74

AF20301
BestAir
20 In. x 25 In. x 5 In. Trion Air Bear MERV 11 Deep Pleat Furnace Filter

$34.99

AF20255AB
BestAir
Flanders PrecisionAire 20 In. x 25 In. x 4 In. Pre-Pleat 40 MERV 8 Furnace Filter

$17.49

AF20254M8
BestAir
20 In. x 25 In. x 2 In. MERV 8 Pleated Furnace Filter

$11.49 As low as $10.92

AF20252PE
Do it Best
20 In. x 25 In. x 1 In. MERV 8 Furnace Filter

$7.29 As low as $6.93

AF20251M8
Do it Best
20 In. x 25 In. x 1 In. MERV 11 Furnace Filter

$15.99 As low as $14.39

AF20251M10
True Blue
20 In. x 25 In. x 1 In. Merv 2 Fiberglass Furnace Filter

$6.99 As low as $6.64

AF20251
AIR FILTER 20x22x1 M-8 Pleat

$11.99 As low as $11.39

AF20221M8
BestAir
20 In. x 20 In. x 2 In. MERV 8 Pleated Furnace Filter

$10.99 As low as $10.44

AF20202M8
Do it Best
20 In. x 20 In. x 1 In. MERV 8 Furnace Filter

$7.29 As low as $6.93

AF20201M8
Do it Best
20 In. x 20 In. x 1 In. MERV 11 Furnace Filter

$15.99 As low as $14.39

AF20201M10
True Blue
20 In. x 20 In. x 1 In. Merv 2 Fiberglass Furnace Filter

$7.79 As low as $7.40

AF20201
Filtrete™ Allergens, Bacteria & Viruses Air Filter 1500 MPR 2004-4, 14 in x 25 in x 1 in (35.5 cm x 63.5 cm x 2.5 cm)

$21.99

AF2004
Filtrete™ Allergens, Bacteria & Viruses Air Filter 1500 MPR 2003-4-HR, 20 in x 25 in x 1 in (50.8 cm x 63.5 cm x 2.5 cm)

$21.99

AF2003
Filtrete™ Allergens, Bacteria & Viruses Air Filter 1500 MPR 2002-4-HR, 20 in x 20 in x 1 in (50.8 cm x 50.8 cm x 2.5 cm)

$21.49

AF2002
Filtrete™ Allergens, Viruses & Air Pollutants Air Filter 1500 MPR 2001-4-HR, 16 in x 25 in x 1 in (40.6 cm x 63.5 cm x 2.5 cm)

$21.99

AF2001
Filtrete™ Allergens, Viruses & Air Pollutants Air Filter 1500 MPR 2000-4-HR, 16 in x 20 in x 1 in (40.6 cm x 50.8 cm x 2.5 cm)

$22.99

AF2000