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Resold Cooling & HeatingSafety Equipment and GearAir QualityBathroom PlumbingBLACK+DECKERBrackets and Angle IronsDehumidifiersEvaporative Coolers and PartsFiltreteHaierHand ToolsHolmesHVAC Ducting and VentilationLaskoPaint Supplies & ToolsPersonal PreparednessPersonal Protective EquipmentPower Tool AccessoriesPower ToolsRegisters and GrillsSolderingStorm & Flood PrepTool Equipment & StorageWater FiltersWater Filtration & Water SoftenersWeatherproof CoversWildfire Prep
4 Inch Filter(418)
Uses item details. Price when purchased online
Aerostar 20x25x4 MERV 13 Air Filter, Pleated AC Furnace HVAC, Smoke Bacteria Allergy, 6 Pack From $47.85
Sponsored
From$4785
Aerostar 20x25x4 MERV 13 Air Filter, Pleated AC Furnace HVAC, Smoke Bacteria Allergy, 6 Pack
1374.1 out of 5 Stars. 137 reviews
Aerostar 16x20x4 MERV 8 Air Filter, Pleated AC Furnace HVAC, Dust Pollen Pet Dander, 1 Pack From $29.16
Sponsored
From$2916
Aerostar 16x20x4 MERV 8 Air Filter, Pleated AC Furnace HVAC, Dust Pollen Pet Dander, 1 Pack
633.9 out of 5 Stars. 63 reviews
Aerostar 20x20x4 MERV 8 Air Filter, Pleated AC Furnace HVAC, Dust Pollen Pet Dander, 2 Pack From $18.95
Sponsored
From$1895
Aerostar 20x20x4 MERV 8 Air Filter, Pleated AC Furnace HVAC, Dust Pollen Pet Dander, 2 Pack
154.4 out of 5 Stars. 15 reviews
Aerostar 20x26x4 MERV 13 Deep Pleat Air Filter, AC Furnace HVAC $51.00 $51.00/count
Sponsored
$5100
current price $51.00$51.00/count
Aerostar 20x26x4 MERV 13 Deep Pleat Air Filter, AC Furnace HVAC
100+ bought since yesterday Filtrete 20x25x4 Air Filter, MPR 1550 MERV 12, Ultra Allergen Reduction, 1 Filter $33.88
$3388
current price $33.88Filtrete 20x25x4 Air Filter, MPR 1550 MERV 12, Ultra Allergen Reduction, 1 Filter
11154.6 out of 5 Stars. 1115 reviews
Best seller Filtrete 16x25x4 HVAC Furnace Air Filter, MPR 1550 MERV 12, Ultra Allergen Reduction, 1 Filter $30.99
$3099
current price $30.99Filtrete 16x25x4 HVAC Furnace Air Filter, MPR 1550 MERV 12, Ultra Allergen Reduction, 1 Filter
6014.5 out of 5 Stars. 601 reviews
Best seller Filtrete 16x25x4 Air Filter, MPR 1000 MERV 11, Allergen Defense, 1 Filter From $15.29
2 options
Available in additional 2 optionsFrom$1529
Filtrete 16x25x4 Air Filter, MPR 1000 MERV 11, Allergen Defense, 1 Filter
6744.6 out of 5 Stars. 674 reviews
Duck Brand Home Vent Filters, 4 in. x 12 in. - 12 Pk $11.99
$1199
current price $11.99Duck Brand Home Vent Filters, 4 in. x 12 in. - 12 Pk
364.7 out of 5 Stars. 36 reviews
Dust Control Furnace AC Register Air Vent Filters 4" x 10", 24 Pack $16.99
$1699
current price $16.99Dust Control Furnace AC Register Air Vent Filters 4" x 10", 24 Pack
844.4 out of 5 Stars. 84 reviews
2 Pack of 20x20x4 MERV 10 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 19-1/2 x 19-1/2 x 3-3/4 $41.87
$4187
current price $41.872 Pack of 20x20x4 MERV 10 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 19-1/2 x 19-1/2 x 3-3/4
854.6 out of 5 Stars. 85 reviews
6 Pack of 20x25x4 MERV 10 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 19-1/2 x 24-1/2 x 3-3/4 $89.95
Sponsored
$8995
current price $89.956 Pack of 20x25x4 MERV 10 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 19-1/2 x 24-1/2 x 3-3/4
294.4 out of 5 Stars. 29 reviews
6 Pack of 20x20x4 MERV 10 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 19-1/2 x 19-1/2 x 3-3/4 $79.95
Sponsored
$7995
current price $79.956 Pack of 20x20x4 MERV 10 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 19-1/2 x 19-1/2 x 3-3/4
55 out of 5 Stars. 5 reviews
Best seller Filtrete 20x25x4 Air Filter, MPR 1000 MERV 11, Allergen Defense, 2 Filters From $38.45
2 options
Available in additional 2 optionsFrom$3845
Filtrete 20x25x4 Air Filter, MPR 1000 MERV 11, Allergen Defense, 2 Filters
5914.6 out of 5 Stars. 591 reviews
Filtrete 16x25x4 HVAC Furnace Air Filter, MPR 1550 MERV 12, Ultra Allergen Reduction, 1 Filter $50.00
$5000
current price $50.00Filtrete 16x25x4 HVAC Furnace Air Filter, MPR 1550 MERV 12, Ultra Allergen Reduction, 1 Filter
6184.7 out of 5 Stars. 618 reviews
2 Pack of 16x24x4 MERV 10 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 15-1/2 x 23-1/2 x 3-3/4 $41.87
$4187
current price $41.872 Pack of 16x24x4 MERV 10 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 15-1/2 x 23-1/2 x 3-3/4
44.5 out of 5 Stars. 4 reviews
2 Pack of 20x24x4 MERV 10 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 19-3/8 x 23-3/8 x 3-3/4 $42.95
$4295
current price $42.952 Pack of 20x24x4 MERV 10 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 19-3/8 x 23-3/8 x 3-3/4
134.8 out of 5 Stars. 13 reviews
2 Pack of 16x20x4 MERV 10 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 15-1/2 x 19-1/2 x 3-3/4 $41.87
$4187
current price $41.872 Pack of 16x20x4 MERV 10 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 15-1/2 x 19-1/2 x 3-3/4
414.6 out of 5 Stars. 41 reviews
6 Pack of 20x25x4 MERV 10 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 19-1/2 x 24-1/2 x 3-3/4 $89.95
$8995
current price $89.956 Pack of 20x25x4 MERV 10 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 19-1/2 x 24-1/2 x 3-3/4
294.4 out of 5 Stars. 29 reviews
2 Pack of 16x25x4 MERV 10 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 15-1/2 x 24-1/2 x 3-3/4 $41.87
$4187
current price $41.872 Pack of 16x25x4 MERV 10 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 15-1/2 x 24-1/2 x 3-3/4
544.5 out of 5 Stars. 54 reviews
2 Pack of 24x24x4 MERV 10 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 23-3/8 x 23-3/8 x 3-3/4 $44.95
$4495
current price $44.952 Pack of 24x24x4 MERV 10 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 23-3/8 x 23-3/8 x 3-3/4
15 out of 5 Stars. 1 reviews
6 Pack of 16x25x4 MERV 10 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 15-1/2 x 24-1/2 x 3-3/4 $79.95
Sponsored
$7995
current price $79.956 Pack of 16x25x4 MERV 10 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 15-1/2 x 24-1/2 x 3-3/4
464.5 out of 5 Stars. 46 reviews
6 Pack of 20x24x4 MERV 10 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 19-3/8 x 23-3/8 x 3-3/4 $91.89
Sponsored
$9189
current price $91.896 Pack of 20x24x4 MERV 10 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 19-3/8 x 23-3/8 x 3-3/4
15 out of 5 Stars. 1 reviews
3M Filtrete MPR 1900 4-inch Allergen, Bacteria and Virus Filters - 16 X 20 X 4 in. - 1-Pack $39.99
$3999
current price $39.993M Filtrete MPR 1900 4-inch Allergen, Bacteria and Virus Filters - 16 X 20 X 4 in. - 1-Pack
634.9 out of 5 Stars. 63 reviews
2 Pack of 18x24x4 MERV 10 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 17-1/2 x 23-1/2 x 3-3/4 $42.95
$4295
current price $42.952 Pack of 18x24x4 MERV 10 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 17-1/2 x 23-1/2 x 3-3/4
25 out of 5 Stars. 2 reviews
Filtrete 20x25x4 HVAC Furnace Air Filter, MPR 1550 MERV 12, Ultra Allergen Reduction, 1 Filter $50.00 $25.00/ea
$5000
current price $50.00$25.00/ea
Filtrete 20x25x4 HVAC Furnace Air Filter, MPR 1550 MERV 12, Ultra Allergen Reduction, 1 Filter
4264.7 out of 5 Stars. 426 reviews
2 Pack of 20x25x4 MERV 10 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 19-1/2 x 24-1/2 x 3-3/4 $41.87
$4187
current price $41.872 Pack of 20x25x4 MERV 10 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 19-1/2 x 24-1/2 x 3-3/4
874.4 out of 5 Stars. 87 reviews
Heating, Cooling & Air Honeywell - FC100A1037 Pleated Filter 20" x 25" x 4" MERV 11 $44.88
$4488
current price $44.88Heating, Cooling & Air Honeywell - FC100A1037 Pleated Filter 20" x 25" x 4" MERV 11
114.6 out of 5 Stars. 11 reviews
6 Pack of 20x20x4 MERV 10 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 19-1/2 x 19-1/2 x 3-3/4 $79.95
$7995
current price $79.956 Pack of 20x20x4 MERV 10 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 19-1/2 x 19-1/2 x 3-3/4
55 out of 5 Stars. 5 reviews
KFFKFF Furnace Filter, 16 x 28 x 4 Inches, MERV 13 HVAC AC Filters, Electrostatic Pleated Air Conditioning Filters, 2-Pack (Real Dimensions: 16.34 x 27.76 x 3.98 Inches), 12-Month Lifespan $53.00
$5300
current price $53.00KFFKFF Furnace Filter, 16 x 28 x 4 Inches, MERV 13 HVAC AC Filters, Electrostatic Pleated Air Conditioning Filters, 2-Pack (Real Dimensions: 16.34 x 27.76 x 3.98 Inches), 12-Month Lifespan
25 out of 5 Stars. 2 reviews
Honeywell FC100A1037 (2-Pack) - 20" x 25" x 4" Pleated Air Filter, MERV 11 $68.26
$6826
current price $68.26Honeywell FC100A1037 (2-Pack) - 20" x 25" x 4" Pleated Air Filter, MERV 11
284.5 out of 5 Stars. 28 reviews
Simply Filters 20x25x4 MERV 8, MPR 600, AC Furnace HVAC Air Filter (4 Pack) From $39.97
Sponsored
From$3997
Simply Filters 20x25x4 MERV 8, MPR 600, AC Furnace HVAC Air Filter (4 Pack)
5924.6 out of 5 Stars. 592 reviews
Simply Filters 20x25x4 MERV 8, MPR 600, AC Furnace HVAC Air Filter (6 Pack) $79.99
Sponsored
$7999
current price $79.99Simply Filters 20x25x4 MERV 8, MPR 600, AC Furnace HVAC Air Filter (6 Pack)
3M Filtrate Ultra Allergen Reduction Filter Slim Fit 20" x 25" x 4", 2-Pack $46.99
$4699
current price $46.993M Filtrate Ultra Allergen Reduction Filter Slim Fit 20" x 25" x 4", 2-Pack
2694.6 out of 5 Stars. 269 reviews
16x24x4 MERV 8 ( MPR 600, FPR 5-6 ) 4" Air Filters for AC & Furnace. 2 Pack. Exact Size: 15-1/2 x 23-1/2 x 3-3/4 $42.95
$4295
current price $42.9516x24x4 MERV 8 ( MPR 600, FPR 5-6 ) 4" Air Filters for AC & Furnace. 2 Pack. Exact Size: 15-1/2 x 23-1/2 x 3-3/4
64.3 out of 5 Stars. 6 reviews
Filter King 4x4x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 4 x 4 x .75" $56.64
$5664
current price $56.64Filter King 4x4x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 4 x 4 x .75"
25 out of 5 Stars. 2 reviews
2 Pack of 20x20x4 MERV 11 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 19-1/2 x 19-1/2 x 3-3/4 $44.95
$4495
current price $44.952 Pack of 20x20x4 MERV 11 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 19-1/2 x 19-1/2 x 3-3/4
54.6 out of 5 Stars. 5 reviews
16x25x4 MERV 8 AC Furnace 4" Inch Air Filter. 6 PACK. (Actual Depth: 3-3/4") $79.95
$7995
current price $79.9516x25x4 MERV 8 AC Furnace 4" Inch Air Filter. 6 PACK. (Actual Depth: 3-3/4")
94.2 out of 5 Stars. 9 reviews
Filterbuy 16x25x4 Air Filter MERV 8 Dust Defense, Pleated HVAC AC Furnace Filter Replacement, 2-Pack $44.98 Was $58.47 $11.25/in
Now$4498
current price Now $44.98, Was $58.47$58.47
$11.25/in
Filterbuy 16x25x4 Air Filter MERV 8 Dust Defense, Pleated HVAC AC Furnace Filter Replacement, 2-Pack
13314.5 out of 5 Stars. 1331 reviews
16x25x4 MERV 13 AC Furnace 4" Inch Air by Glasfloss Industries. 6 PACK (Actual Depth: 3-3/4") $132.95
$13295
current price $132.9516x25x4 MERV 13 AC Furnace 4" Inch Air by Glasfloss Industries. 6 PACK (Actual Depth: 3-3/4")
Filtrete 16x25x4 HVAC Furnace Air Filter, MPR 1550 MERV 12, Ultra Allergen Reduction, 1 Filter $34.03
$3403
current price $34.03Filtrete 16x25x4 HVAC Furnace Air Filter, MPR 1550 MERV 12, Ultra Allergen Reduction, 1 Filter
2474.6 out of 5 Stars. 247 reviews
16x20x4 MERV 8 AC Furnace 4" Inch Air Filters. 6 PACK. (Actual Size: 15-1/2 x 19-1/2 x 3-3/4) $79.95
$7995
current price $79.9516x20x4 MERV 8 AC Furnace 4" Inch Air Filters. 6 PACK. (Actual Size: 15-1/2 x 19-1/2 x 3-3/4)
54.4 out of 5 Stars. 5 reviews
16x20x4 MERV 13 (MPR 2200) AC Furnace 4" Inch Air Filters by Glasfloss Industries. 6 PACK (Actual Depth: 3-3/4") $108.95
$10895
current price $108.9516x20x4 MERV 13 (MPR 2200) AC Furnace 4" Inch Air Filters by Glasfloss Industries. 6 PACK (Actual Depth: 3-3/4")
2 Pack of 16x20x4 MERV 11 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 15-1/2 x 19-1/2 x 3-3/4 $41.87
$4187
current price $41.872 Pack of 16x20x4 MERV 11 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 15-1/2 x 19-1/2 x 3-3/4
Filtrete 16x20x4 HVAC Furnace Air Filter, MPR 1900 MERV 13, Premium Allergen, Bacteria and Virus, 2 Filters $49.99 $25.00/ea
$4999
current price $49.99$25.00/ea
Filtrete 16x20x4 HVAC Furnace Air Filter, MPR 1900 MERV 13, Premium Allergen, Bacteria and Virus, 2 Filters
694.7 out of 5 Stars. 69 reviews
2 Pack of 16x25x4 MERV 13 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 15-1/2 x 24-1/2 x 3-3/4 $56.95
$5695
current price $56.952 Pack of 16x25x4 MERV 13 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 15-1/2 x 24-1/2 x 3-3/4
94.9 out of 5 Stars. 9 reviews
2 Pack of 20x20x4 MERV 13 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 19-1/2 x 19-1/2 x 3-3/4 $55.95
$5595
current price $55.952 Pack of 20x20x4 MERV 13 Pleated 4" Inch Air Filters by Glasfloss. Actual Size: 19-1/2 x 19-1/2 x 3-3/4
Honeywell FC200E1029 (2-Pack) - 16" x 25" x 4" Pleated Air Filter, MERV 13 $140.94
$14094
current price $140.94Honeywell FC200E1029 (2-Pack) - 16" x 25" x 4" Pleated Air Filter, MERV 13
VEVOR Electrostatic Air Filter, 20x25x4 inch Washable & Reusable Aluminum AC/HVAC Furnace Filter, MERV 8 Long Lifetime, Home or Office (Actual Size: 19.37 x 24.37 x 3.58 in) $67.89
$6789
current price $67.89VEVOR Electrostatic Air Filter, 20x25x4 inch Washable & Reusable Aluminum AC/HVAC Furnace Filter, MERV 8 Long Lifetime, Home or Office (Actual Size: 19.37 x 24.37 x 3.58 in)
20x20x4 MERV 8 AC Furnace 4" Inch Air Filter - 6 PACK $79.95
$7995
current price $79.9520x20x4 MERV 8 AC Furnace 4" Inch Air Filter - 6 PACK
214.7 out of 5 Stars. 21 reviews
3M COMPANY Filtrete Filter DP02DC-4 White 20 x 20 x 4-Inch Residential Use, Standard Application $42.35
$4235
current price $42.353M COMPANY Filtrete Filter DP02DC-4 White 20 x 20 x 4-Inch Residential Use, Standard Application
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