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$118.92
24X30x1 Air Filter (12-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 23.88 X 29.88 X 0.75 Inches)
FilterBuy.com
112
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24X30x1 Air Filter (12-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 23.88 X 29.88 X 0.75 Inches)
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112
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25X32x1 Air Filter (4-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 24.50 X 31.50 X 0.75 Inches)
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25X32x1 Air Filter (4-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 24.50 X 31.50 X 0.75 Inches)
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16X16x2 Air Filter (12-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 15.50 X 15.50 X 1.75 Inches)
FilterBuy.com
72
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16X16x2 Air Filter (12-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 15.50 X 15.50 X 1.75 Inches)
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16X20x2 Air Filter (6-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 15.50 X 19.50 X 1.75 Inches)
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16X20x2 Air Filter (6-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 15.50 X 19.50 X 1.75 Inches)
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13X21.5X1 Air Filter (6-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 12.88 X 21.50 X 0.75 Inches)
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13X21.5X1 Air Filter (6-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 12.88 X 21.50 X 0.75 Inches)
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16X25x2 Air Filter (12-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 15.50 X 24.50 X 1.75 Inches)
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191
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16X25x2 Air Filter (12-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 15.50 X 24.50 X 1.75 Inches)
FilterBuy.com
191
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18X25x1 Air Filter (6-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 17.50 X 24.50 X 0.75 Inches)
FilterBuy.com
37K+
$54.96
18X25x1 Air Filter (6-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 17.50 X 24.50 X 0.75 Inches)
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20X21x1 Air Filter (6-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 X 20.50 X 0.75 Inches)
FilterBuy.com
17
$59.94
20X21x1 Air Filter (6-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 X 20.50 X 0.75 Inches)
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17
$94.96
20X25x5 Air Filter (4-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters For Honeywell FC100A1037, Lennox X6673, Carrier, & More
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33
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20X25x5 Air Filter (4-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters For Honeywell FC100A1037, Lennox X6673, Carrier, & More
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33
$122.22
20X25x4 Air Filter (6-Pack), Pleated MERV 11 Allergen Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 X 24.50 X 3.63 Inches)
FilterBuy.com
9K+
$122.22
20X25x4 Air Filter (6-Pack), Pleated MERV 11 Allergen Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 X 24.50 X 3.63 Inches)
FilterBuy.com
9K+
$49.92
25X25x1 Air Filter (6-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 24.50 X 24.50 X 0.75 Inches)
FilterBuy.com
44K+
$49.92
25X25x1 Air Filter (6-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 24.50 X 24.50 X 0.75 Inches)
FilterBuy.com
44K+
$29.16
$51.96
20X20x1 4 Pk MERV 8 Pleated Furnace & AC Air Filter By Airx
Discount Filters
43% off
$29.16
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Discount Filters
$44.12
20X25x4 Air Filter (2-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 X 24.50 X 3.63 Inches)
FilterBuy.com
5K+
$44.12
20X25x4 Air Filter (2-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 X 24.50 X 3.63 Inches)
FilterBuy.com
5K+
$42.70
20X30x2 Air Filter (2-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 19.75 X 29.75 X 1.75 Inches)
FilterBuy.com
197
$42.70
20X30x2 Air Filter (2-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 19.75 X 29.75 X 1.75 Inches)
FilterBuy.com
197
$132.96
20X25x5 Air Filter (4-Pack), Pleated MERV 11 Allergen Defense HVAC AC Furnace Air Filters Replacement For Trion Air Bear, Generalaire, Skuttle, & More
FilterBuy.com
11
$132.96
20X25x5 Air Filter (4-Pack), Pleated MERV 11 Allergen Defense HVAC AC Furnace Air Filters Replacement For Trion Air Bear, Generalaire, Skuttle, & More
FilterBuy.com
11
$44.94
16X25x1 Air Filter (6-Pack), Pleated MERV 11 Allergen Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 15.50 X 24.50 X 0.75 Inches)
FilterBuy.com
8K+
$44.94
16X25x1 Air Filter (6-Pack), Pleated MERV 11 Allergen Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 15.50 X 24.50 X 0.75 Inches)
FilterBuy.com
8K+
$109.96
16X25x5 Air Filter (4-Pack), Pleated MERV 11 Allergen Defense HVAC AC Furnace Air Filters For Honeywell FC100A1029, Lennox X6670, Carrier, & More
FilterBuy.com
513
$109.96
16X25x5 Air Filter (4-Pack), Pleated MERV 11 Allergen Defense HVAC AC Furnace Air Filters For Honeywell FC100A1029, Lennox X6670, Carrier, & More
FilterBuy.com
513
$146.94
20X20x4 6 Pk MERV 8 Pleated Furnace & AC Air Filter By Airx
Discount Filters
$146.94
20X20x4 6 Pk MERV 8 Pleated Furnace & AC Air Filter By Airx
Discount Filters
$135.48
16X25x1 12 Pk MERV 11Pleated High-Flow Furnace & AC Air Filter By Airx
Discount Filters
$135.48
16X25x1 12 Pk MERV 11Pleated High-Flow Furnace & AC Air Filter By Airx
Discount Filters
$90.00
Pleated Air Filters - 12X24x4", MERV 8 - ULINE - Case Of 6
Uline
$90.00
Pleated Air Filters - 12X24x4", MERV 8 - ULINE - Case Of 6
Uline
$81.00
Industrial Pleated Air Filters - 16X20x2", MERV 8 - ULINE - Case Of 12
Uline
$81.00
Industrial Pleated Air Filters - 16X20x2", MERV 8 - ULINE - Case Of 12
Uline
$64.27
18X25X1 Astro-Allergen Antimicrobial AC / Furnace Filter
Air Filters Inc.
Free shipping
$64.27
18X25X1 Astro-Allergen Antimicrobial AC / Furnace Filter
Air Filters Inc.
Free shipping
$8.14
Nordyne 669086R Hog Hair Filter Replacement (14.25" X 20"), 669086R | Supplyhouse.Com
SupplyHouse.com
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$91.50
Pleated Air Filters - 16X20x4", MERV 8 - ULINE - Case Of 6
Uline
$91.50
Pleated Air Filters - 16X20x4", MERV 8 - ULINE - Case Of 6
Uline
$36.97
Filtrete 16 X 25 X 5 MERV 12 1550 MPR Allergen, Bacteria And Virus Electrostatic Pleated Air Filter | LOWEDP015IN2
Lowe's
949
$36.97
Filtrete 16 X 25 X 5 MERV 12 1550 MPR Allergen, Bacteria And Virus Electrostatic Pleated Air Filter | LOWEDP015IN2
Lowe's
949
$327.00
22 in. X 36 in. X 4 in. MERV 8 (FPR 5) Dust Defense Pleated HVAC AC Furnace Air Filters Replacement (12-Pack)
Home Depot
Free shipping
$327.00
22 in. X 36 in. X 4 in. MERV 8 (FPR 5) Dust Defense Pleated HVAC AC Furnace Air Filters Replacement (12-Pack)
Home Depot
Free shipping
$5.97
Filtrete 18 X 20 X 1 MERV 1 Basic Flat Air Filter 2 -Pack | FPL45-2PK-24
Lowe's
1K+
$5.97
Filtrete 18 X 20 X 1 MERV 1 Basic Flat Air Filter 2 -Pack | FPL45-2PK-24
Lowe's
1K+
$61.80
$103.00
20X24x1 Air Filter MERV 11 Rating, 12 Pack Of Furnace Filters Comparable To MPR 1000, MPR 1200 FPR 7 - Made In USA By AIRX FILTERS WICKED CLEAN AIR.
shop.tenlca-gs.com
40% off
$61.80
$103.00
20X24x1 Air Filter MERV 11 Rating, 12 Pack Of Furnace Filters Comparable To MPR 1000, MPR 1200 FPR 7 - Made In USA By AIRX FILTERS WICKED CLEAN AIR.
shop.tenlca-gs.com
$3.08
Hart & Cooley 274120120 12" X 12" X 1" Fiberglass Throw Away Replacement Filter | Supplyhouse.Com
SupplyHouse.com
51
$3.08
Hart & Cooley 274120120 12" X 12" X 1" Fiberglass Throw Away Replacement Filter | Supplyhouse.Com
SupplyHouse.com
51
$179.35
RHEEM UFFPG21 Filter Plenum - Upflow Gas - 21 in. REPLACEMENT UFFPG21
Voomi Supply
$179.35
RHEEM UFFPG21 Filter Plenum - Upflow Gas - 21 in. REPLACEMENT UFFPG21
Voomi Supply
$29.69
Nordic Pure 16X25x4 (3 5/8) Pleated MERV 8 Air Filter 1 Pack (16X25x4m8-1)
JBTools
4K+
$29.69
Nordic Pure 16X25x4 (3 5/8) Pleated MERV 8 Air Filter 1 Pack (16X25x4m8-1)
JBTools
4K+
$30.95
Case Of (12) Protect Plus 20X30x1 Air Furnace Filter Hvac Filters
eBay
9
$30.95
Case Of (12) Protect Plus 20X30x1 Air Furnace Filter Hvac Filters
eBay
9
$71.72
AAF Flanders Air Filter Naturalaire 20" W X 25" H X 1" D Synthetic 8 MERV Pleated - Pack Of 12 84858.012025-XCP12
DkHardware.com
$71.72
AAF Flanders Air Filter Naturalaire 20" W X 25" H X 1" D Synthetic 8 MERV Pleated - Pack Of 12 84858.012025-XCP12
DkHardware.com
$29.97
(2 Pack) Compatible For Honeywell F55F1003 HVAC Furnace Aluminum Mesh Pre/Post Filters
Air Filter LLC
$29.97
(2 Pack) Compatible For Honeywell F55F1003 HVAC Furnace Aluminum Mesh Pre/Post Filters
Air Filter LLC
$48.87
(2 Pack) Compatible With Goodman AE14-1625-51 HVAC Furnace Aluminum Mesh Pre/Post Filters
Air Filter LLC
$48.87
(2 Pack) Compatible With Goodman AE14-1625-51 HVAC Furnace Aluminum Mesh Pre/Post Filters
Air Filter LLC
$27.97
(2 Pack) Air Filter Factory F-1030-3 HVAC Furnace A-Coil Aluminum Filters
Air Filter LLC
$27.97
(2 Pack) Air Filter Factory F-1030-3 HVAC Furnace A-Coil Aluminum Filters
Air Filter LLC
How To Locate, Size & Replace Your Furnace Filter
6:14
YouTubeMold Medics
How To Locate, Size & Replace Your Furnace Filter
Don't forget to check on and replace your furnace filter. If left for too long it could start to affect the quality of your home's air. Here is a detailed explanation from our resident microbial remediator on what to do. Are dirty or clogged ducts causing problems for your HVAC system or indoor air quality? Our experts will go the extra mile to ...
75K viewsApr 10, 2020
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Shop furnace filter sizes

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$29.16
$51.96
20X20x1 4 Pk MERV 8 Pleated Furnace & AC Air Filter By Airx
Discount Filters
43% off
$29.16
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20X20x1 4 Pk MERV 8 Pleated Furnace & AC Air Filter By Airx
Discount Filters
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20X25x4 Air Filter (2-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 X 24.50 X 3.63 Inches)
FilterBuy.com
5K+
$44.12
20X25x4 Air Filter (2-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 X 24.50 X 3.63 Inches)
FilterBuy.com
$42.70
20X30x2 Air Filter (2-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 19.75 X 29.75 X 1.75 Inches)
FilterBuy.com
197
$42.70
20X30x2 Air Filter (2-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 19.75 X 29.75 X 1.75 Inches)
FilterBuy.com
$132.96
20X25x5 Air Filter (4-Pack), Pleated MERV 11 Allergen Defense HVAC AC Furnace Air Filters Replacement For Trion Air Bear, Generalaire, Skuttle, & More
FilterBuy.com
11
$132.96
20X25x5 Air Filter (4-Pack), Pleated MERV 11 Allergen Defense HVAC AC Furnace Air Filters Replacement For Trion Air Bear, Generalaire, Skuttle, & More
FilterBuy.com
$44.94
16X25x1 Air Filter (6-Pack), Pleated MERV 11 Allergen Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 15.50 X 24.50 X 0.75 Inches)
FilterBuy.com
8K+
$44.94
16X25x1 Air Filter (6-Pack), Pleated MERV 11 Allergen Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 15.50 X 24.50 X 0.75 Inches)
FilterBuy.com
$109.96
16X25x5 Air Filter (4-Pack), Pleated MERV 11 Allergen Defense HVAC AC Furnace Air Filters For Honeywell FC100A1029, Lennox X6670, Carrier, & More
FilterBuy.com
513
$109.96
16X25x5 Air Filter (4-Pack), Pleated MERV 11 Allergen Defense HVAC AC Furnace Air Filters For Honeywell FC100A1029, Lennox X6670, Carrier, & More
FilterBuy.com
$146.94
20X20x4 6 Pk MERV 8 Pleated Furnace & AC Air Filter By Airx
Discount Filters
$146.94
20X20x4 6 Pk MERV 8 Pleated Furnace & AC Air Filter By Airx
Discount Filters
$135.48
16X25x1 12 Pk MERV 11Pleated High-Flow Furnace & AC Air Filter By Airx
Discount Filters
$135.48
16X25x1 12 Pk MERV 11Pleated High-Flow Furnace & AC Air Filter By Airx
Discount Filters
$90.00
Pleated Air Filters - 12X24x4", MERV 8 - ULINE - Case Of 6
Uline
$90.00
Pleated Air Filters - 12X24x4", MERV 8 - ULINE - Case Of 6
Uline
$81.00
Industrial Pleated Air Filters - 16X20x2", MERV 8 - ULINE - Case Of 12
Uline
$81.00
Industrial Pleated Air Filters - 16X20x2", MERV 8 - ULINE - Case Of 12
Uline
$64.27
18X25X1 Astro-Allergen Antimicrobial AC / Furnace Filter
Air Filters Inc.
Free shipping
$64.27
18X25X1 Astro-Allergen Antimicrobial AC / Furnace Filter
Air Filters Inc.
$8.14
Nordyne 669086R Hog Hair Filter Replacement (14.25" X 20"), 669086R | Supplyhouse.Com
SupplyHouse.com
4
$8.14
Nordyne 669086R Hog Hair Filter Replacement (14.25" X 20"), 669086R | Supplyhouse.Com
SupplyHouse.com
$91.50
Pleated Air Filters - 16X20x4", MERV 8 - ULINE - Case Of 6
Uline
$91.50
Pleated Air Filters - 16X20x4", MERV 8 - ULINE - Case Of 6
Uline
$36.97
Filtrete 16 X 25 X 5 MERV 12 1550 MPR Allergen, Bacteria And Virus Electrostatic Pleated Air Filter | LOWEDP015IN2
Lowe's
949
$36.97
Filtrete 16 X 25 X 5 MERV 12 1550 MPR Allergen, Bacteria And Virus Electrostatic Pleated Air Filter | LOWEDP015IN2
Lowe's
$327.00
22 in. X 36 in. X 4 in. MERV 8 (FPR 5) Dust Defense Pleated HVAC AC Furnace Air Filters Replacement (12-Pack)
Home Depot
Free shipping
$327.00
22 in. X 36 in. X 4 in. MERV 8 (FPR 5) Dust Defense Pleated HVAC AC Furnace Air Filters Replacement (12-Pack)
Home Depot
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Filtrete 18 X 20 X 1 MERV 1 Basic Flat Air Filter 2 -Pack | FPL45-2PK-24
Lowe's
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Filtrete 18 X 20 X 1 MERV 1 Basic Flat Air Filter 2 -Pack | FPL45-2PK-24
Lowe's
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$103.00
20X24x1 Air Filter MERV 11 Rating, 12 Pack Of Furnace Filters Comparable To MPR 1000, MPR 1200 FPR 7 - Made In USA By AIRX FILTERS WICKED CLEAN AIR.
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40% off
$61.80
$103.00
20X24x1 Air Filter MERV 11 Rating, 12 Pack Of Furnace Filters Comparable To MPR 1000, MPR 1200 FPR 7 - Made In USA By AIRX FILTERS WICKED CLEAN AIR.
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Hart & Cooley 274120120 12" X 12" X 1" Fiberglass Throw Away Replacement Filter | Supplyhouse.Com
SupplyHouse.com
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$3.08
Hart & Cooley 274120120 12" X 12" X 1" Fiberglass Throw Away Replacement Filter | Supplyhouse.Com
SupplyHouse.com

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$118.92
24X30x1 Air Filter (12-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 23.88 X 29.88 X 0.75 Inches)
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18X25x1 Air Filter (6-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 17.50 X 24.50 X 0.75 Inches)
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20X25x5 Air Filter (4-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters For Honeywell FC100A1037, Lennox X6673, Carrier, & More
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20X25x5 Air Filter (4-Pack), Pleated MERV 11 Allergen Defense HVAC AC Furnace Air Filters Replacement For Trion Air Bear, Generalaire, Skuttle, & More
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16X25x5 Air Filter (4-Pack), Pleated MERV 11 Allergen Defense HVAC AC Furnace Air Filters For Honeywell FC100A1029, Lennox X6670, Carrier, & More
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20X20x4 6 Pk MERV 8 Pleated Furnace & AC Air Filter By Airx
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    SponsoredQuality, American Made Furnace Filters Delivered Free To Your Home Or Business. Orde…
    Types: MERV 8 (AFB Silver), MERV 11 (AFB Gold), MERV 13 (AFB Platinum)