Collection: 4 Inch Air Filter
Breathe easier with premium 4-inch air filters that capture more dust and allergens. Our deep-pleated design offers superior filtration and extended life compared to standard filters. Available in multiple MERV ratings to match your specific needs, these USA-made filters provide exceptional air quality for your home or business.
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Atomic 18x24x4 MERV 11 Pleated AC Furnace Filter - 3 Pack
Vendor:Atomic FiltersNo reviewsRegular price $ 81.75 USDRegular price$ 114.95 USDSale price $ 81.75 USDSale -
Atomic 18x24x4 MERV 13 Pleated AC Furnace Filter - 3 Pack
Vendor:Atomic FiltersNo reviewsRegular price $ 99.44 USDRegular price$ 155.95 USDSale price $ 99.44 USDSale -
Atomic 18x24x4 MERV 8 Pleated AC Furnace Filter - 3 Pack
Vendor:Atomic Filters1 reviewRegular price $ 69.44 USDRegular price$ 99.95 USDSale price $ 69.44 USDSale -
Atomic 20x20x4 MERV 11 Pleated AC Furnace Filter - 3 Pack
Vendor:Atomic Filters2 reviewsRegular price $ 75.75 USDRegular price$ 99.86 USDSale price $ 75.75 USDSale -
Atomic 20x20x4 MERV 13 Pleated AC Furnace Filter - 3 Pack
Vendor:Atomic Filters1 reviewRegular price $ 85.95 USDRegular price$ 105.99 USDSale price $ 85.95 USDSale -
Atomic 20x20x4 MERV 8 Pleated AC Furnace Filter - 3 Pack
Vendor:Atomic Filters1 reviewRegular price $ 65.44 USDRegular price$ 86.87 USDSale price $ 65.44 USDSale -
Atomic 20x24x4 MERV 11 Pleated AC Furnace Filter - 3 Pack
Vendor:Atomic FiltersNo reviewsRegular price $ 71.75 USDRegular price$ 91.95 USDSale price $ 71.75 USDSale -
Atomic 20x24x4 MERV 13 Pleated AC Furnace Filter - 3 Pack
Vendor:Atomic FiltersNo reviewsRegular price $ 81.59 USDRegular price$ 115.95 USDSale price $ 81.59 USDSale -
Atomic 20x24x4 MERV 8 Pleated AC Furnace Filter - 3 Pack
Vendor:Atomic Filters2 reviewsRegular price $ 59.44 USDRegular price$ 79.95 USDSale price $ 59.44 USDSale -
Atomic 20x25x4 MERV 8 Pleated AC Furnace Filter - Case of 3
Vendor:Atomic Filters8 reviewsRegular price $ 61.99 USDRegular price$ 89.95 USDSale price $ 61.99 USDSale -
Atomic 24x24x4 MERV 11 Compatible for TT-FM-2424 Pleated AC Furnace Filter - 3 Pack
Vendor:Atomic FiltersNo reviewsRegular price $ 69.99 USDRegular price$ 75.95 USDSale price $ 69.99 USDSale -
Atomic 24x24x4 MERV 11 Pleated AC Furnace Filter - 3 Pack
Vendor:Atomic Filters1 reviewRegular price $ 69.99 USDRegular price$ 75.95 USDSale price $ 69.99 USDSale -
Atomic 24x24x4 MERV 13 Pleated AC Furnace Filter - 3 Pack
Vendor:Atomic FiltersNo reviewsRegular price $ 125.95 USDRegular price$ 155.85 USDSale price $ 125.95 USDSale -
Atomic 24x24x4 MERV 8 Pleated AC Furnace Filter - 3 Pack
Vendor:Atomic Filters2 reviewsRegular price $ 74.44 USDRegular price$ 99.95 USDSale price $ 74.44 USDSale -
Atomic 25x29x4 MERV 11 Pleated AC Furnace Filter - 3 Pack
Vendor:Atomic FiltersNo reviewsRegular price $ 149.75 USDRegular price$ 199.85 USDSale price $ 149.75 USDSale -
Atomic 25x29x4 MERV 13 Pleated AC Furnace Filter - 3 Pack
Vendor:Atomic FiltersNo reviewsRegular price $ 155.95 USDRegular price$ 197.78 USDSale price $ 155.95 USDSale