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Furnace Filters & Accessories

NaturalAire 87357.01163 Pleated Furnace Filter, 16 in L, 25 in W, 4 MERV, Craft Die Cut Frame
Flanders
NaturalAire 87357.01163 Pleated Furnace Filter, 16 in L, 25 in W, 4 MERV, Craft Die Cut Frame
Project Lists Icon
Sku: 36900102 More Options
4 Available at SAN MARCOS
$11.99
NaturalAire 87357.01202 Pleated Furnace Filter, 20 in L, 20 in W, 4 MERV, Craft Die Cut Frame
Flanders
NaturalAire 87357.01202 Pleated Furnace Filter, 20 in L, 20 in W, 4 MERV, Craft Die Cut Frame
Project Lists Icon
Sku: 36900104 More Options
11 Available at SAN MARCOS
$11.99
NaturalAire 87357.01203 Pleated Furnace Filter, 20 in L, 25 in W, 4 MERV, Craft Die Cut Frame
Flanders
NaturalAire 87357.01203 Pleated Furnace Filter, 20 in L, 25 in W, 4 MERV, Craft Die Cut Frame
Project Lists Icon
Sku: 36900106 More Options
5 Available at SAN MARCOS
$11.99
10055.01141 Furnace Filter, 14 in L, 14 in W, 4 MERV, Chipboard Frame
Flanders
10055.01141 Furnace Filter, 14 in L, 14 in W, 4 MERV, Chipboard Frame
Project Lists Icon
Sku: 36900108 More Options
16 Available at SAN MARCOS
$2.49
9803-4 Air Filter, 20 in L, 25 in W, 11 MERV, 1000 MPR
Filtrete
9803-4 Air Filter, 20 in L, 25 in W, 11 MERV, 1000 MPR
Project Lists Icon
Sku: 11120049 More Options
6 Available at SAN MARCOS
$13.99
BA20-4 Air Filter, 12 in L, 24 in W, 5 MERV, 300 MPR
Filtrete
BA20-4 Air Filter, 12 in L, 24 in W, 5 MERV, 300 MPR
Project Lists Icon
Sku: 1614882-052303-36 More Options
323 Available for SHIP TO STORE
$7.88
AL11-4 Air Filter, 14 in L, 14 in W, 11 MERV, 1000 MPR, Polypropylene Frame
Filtrete
AL11-4 Air Filter, 14 in L, 14 in W, 11 MERV, 1000 MPR, Polypropylene Frame
Project Lists Icon
Sku: 1614890-052303-36 More Options
102 Available for SHIP TO STORE
$13.74
AL16-4 Air Filter, 16 in L, 16 in W, 11 MERV, 1000 MPR, Polypropylene Frame
Filtrete
AL16-4 Air Filter, 16 in L, 16 in W, 11 MERV, 1000 MPR, Polypropylene Frame
Project Lists Icon
Sku: 1614932-052303-36
0 Available for SHIP TO STORE
$13.74
AL28-4 Air Filter, 18 in L, 30 in W, 11 MERV, 1000 MPR, Polypropylene Frame
Filtrete
AL28-4 Air Filter, 18 in L, 30 in W, 11 MERV, 1000 MPR, Polypropylene Frame
Project Lists Icon
Sku: 1614957-052303-36 More Options
77 Available for SHIP TO STORE
$17.01
CL20-4 Air Filter, 12 in L, 24 in W, 7 MERV, 600 MPR
Filtrete
CL20-4 Air Filter, 12 in L, 24 in W, 7 MERV, 600 MPR
Project Lists Icon
Sku: 1614965-052303-36 More Options
108 Available for SHIP TO STORE
$9.84
AL42-4 Air Filter, 12 in L, 30 in W, 11 MERV, 1000 MPR, Polypropylene Frame
Filtrete
AL42-4 Air Filter, 12 in L, 30 in W, 11 MERV, 1000 MPR, Polypropylene Frame
Project Lists Icon
Sku: 1614973-052303-36
0 Available for SHIP TO STORE
$14.85
AL13-4 Air Filter, 24 in L, 30 in W, 11 MERV, 1000 MPR, Polypropylene Frame
Filtrete
AL13-4 Air Filter, 24 in L, 30 in W, 11 MERV, 1000 MPR, Polypropylene Frame
Project Lists Icon
Sku: 11120051 More Options
7 Available at SAN MARCOS
$13.99
AL15-4 Air Filter, 25 in L, 25 in W, 11 MERV, 1000 MPR, Polypropylene Frame
Filtrete
AL15-4 Air Filter, 25 in L, 25 in W, 11 MERV, 1000 MPR, Polypropylene Frame
Project Lists Icon
Sku: 1614999-052303-36 More Options
108 Available for SHIP TO STORE
$17.01
AL27-4 Air Filter, 16 in L, 30 in W, 11 MERV, 1000 MPR, Polypropylene Frame
Filtrete
AL27-4 Air Filter, 16 in L, 30 in W, 11 MERV, 1000 MPR, Polypropylene Frame
Project Lists Icon
Sku: 1615004-052303-36 More Options
88 Available for SHIP TO STORE
$17.01
9880DC-6 Dust and Pollen Reduction Filter, 12 in L, 12 in W, 7 MERV, 600 MPR, Cardboard Frame
Filtrete
9880DC-6 Dust and Pollen Reduction Filter, 12 in L, 12 in W, 7 MERV, 600 MPR, Cardboard Frame
Project Lists Icon
Sku: 3167723-052303-36 More Options
380 Available for SHIP TO STORE
$11.23
A201-SGM-BOX11R Air Filter, 19-3/4 in L, 24-1/4 in W, 11 MERV, Cardboard Frame
BestAir
A201-SGM-BOX11R Air Filter, 19-3/4 in L, 24-1/4 in W, 11 MERV, Cardboard Frame
Project Lists Icon
Sku: 3726957-052303-36 More Options
7 Available for SHIP TO STORE
$32.40
A401-SG4-11R Air Filter, 27 in L, 16 in W, 11 MERV, 1000 to 1200 MPR
BestAir
A401-SG4-11R Air Filter, 27 in L, 16 in W, 11 MERV, 1000 to 1200 MPR
Project Lists Icon
Sku: 3726965-052303-36
0 Available for SHIP TO STORE
$32.40
UP11-4 Air Filter, 14 in L, 14 in W, 12 MERV, 1500 MPR
Filtrete
UP11-4 Air Filter, 14 in L, 14 in W, 12 MERV, 1500 MPR
Project Lists Icon
Sku: 3746880-052303-36 More Options
57 Available for SHIP TO STORE
$21.09
UP23-4 Air Filter, 14 in L, 24 in W, 12 MERV, 1500 MPR
Filtrete
UP23-4 Air Filter, 14 in L, 24 in W, 12 MERV, 1500 MPR
Project Lists Icon
Sku: 3746906-052303-36 More Options
13 Available for SHIP TO STORE
$18.99
UT20-4 Air Filter, 12 in L, 24 in W, 13 MERV, 1900 MPR
Filtrete
UT20-4 Air Filter, 12 in L, 24 in W, 13 MERV, 1900 MPR
Project Lists Icon
Sku: 3746914-052303-36 More Options
30 Available for SHIP TO STORE
$21.59
UT22-4 Air Filter, 20 in L, 30 in W, 13 MERV, 1900 MPR
Filtrete
UT22-4 Air Filter, 20 in L, 30 in W, 13 MERV, 1900 MPR
Project Lists Icon
Sku: 3746922-052303-36 More Options
64 Available for SHIP TO STORE
$21.59
9822DC-6 Micro Allergen Reduction Filter, 30 in L, 20 in W, 11 MERV, 1000 MPR
Filtrete
9822DC-6 Micro Allergen Reduction Filter, 30 in L, 20 in W, 11 MERV, 1000 MPR
Project Lists Icon
Sku: 3690120 More Options
4 Available at SAN MARCOS
$13.99
300DC-6 Dust Reduction Filter, 20 in L, 16 in W, 6 MERV, 300 MPR
Filtrete
300DC-6 Dust Reduction Filter, 20 in L, 16 in W, 6 MERV, 300 MPR
Project Lists Icon
Sku: 4700423-052303-36 More Options
726 Available for SHIP TO STORE
$7.88
SM1006 Air Filter, 20 in L, 30 in W, 4 MERV, Synthetic Roll Frame
NaturalAire
SM1006 Air Filter, 20 in L, 30 in W, 4 MERV, Synthetic Roll Frame
Project Lists Icon
Sku: 7389430-052303-36 More Options
112 Available for SHIP TO STORE
$11.99
HR24240 Air Filter, 240 in L, 24 in W, 3 to 4 MERV, Frameless Frame
Flanders
HR24240 Air Filter, 240 in L, 24 in W, 3 to 4 MERV, Frameless Frame
Project Lists Icon
Sku: 7389455-052303-36 More Options
223 Available for SHIP TO STORE
$42.19
HR30240 Hammock Roll, 240 in L, 30 in W, 5 MERV, For: Lennox furnaces
Flanders
HR30240 Hammock Roll, 240 in L, 30 in W, 5 MERV, For: Lennox furnaces
Project Lists Icon
Sku: 7389463-052303-36 More Options
17 Available for SHIP TO STORE
$47.11
HR36240 Hammock Roll, 240 in L, 36 in W, 5 MERV, For: Lennox furnaces
Flanders
HR36240 Hammock Roll, 240 in L, 36 in W, 5 MERV, For: Lennox furnaces
Project Lists Icon
Sku: 7389471-052303-36 More Options
7 Available for SHIP TO STORE
$52.98
9800-4 Air Filter, 16 in L, 20 in W, 11 MERV, 1000 MPR
Filtrete
9800-4 Air Filter, 16 in L, 20 in W, 11 MERV, 1000 MPR
Project Lists Icon
Sku: 7448582-052303-36 More Options
220 Available for SHIP TO STORE
$13.99
9801-4 Air Filter, 16 in L, 25 in W, 11 MERV, 1000 MPR
Filtrete
9801-4 Air Filter, 16 in L, 25 in W, 11 MERV, 1000 MPR
Project Lists Icon
Sku: 36090116
0 Available at SAN MARCOS
$13.99
9802-4 Air Filter, 20 in L, 20 in W, 11 MERV, 1000 MPR
Filtrete
9802-4 Air Filter, 20 in L, 20 in W, 11 MERV, 1000 MPR
Project Lists Icon
Sku: 11120047 More Options
4 Available at SAN MARCOS
$13.99
9835 Dust and Pollen Reduction Filter, 20 in L, 14 in W, 8 MERV, 600 um MPR, Synthetic Frame
Filtrete
9835 Dust and Pollen Reduction Filter, 20 in L, 14 in W, 8 MERV, 600 um MPR, Synthetic Frame
Project Lists Icon
Sku: 8824674-052303-36 More Options
34 Available for SHIP TO STORE
$9.84
311-4 Air Filter, 14 in L, 14 in W, 5 MERV, 300 MPR
Filtrete
311-4 Air Filter, 14 in L, 14 in W, 5 MERV, 300 MPR
Project Lists Icon
Sku: 9963315-052303-36 More Options
6 Available for SHIP TO STORE
$7.88