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Trane BAYFTFR21M2 - Perfect Fit 5" Replacement Air Filter 21" Width
Regular price From $113.38 USDRegular priceUnit price / per -
Rheem PD540044 - 21" x 24.5" x 5" Exact-Fit Filter for Air Cleaner AXHF-E24AM, MERV 8
Regular price From $49.14 USDRegular priceUnit price / perSold out -
Glasfloss ZLP20251 - 20" x 25" x 1" Z-Line Pleated Air Filter, MERV 10
Regular price From $20.37 USDRegular priceUnit price / per -
Aprilaire 510 - Clean Air, Air Filter For Aprilaire Whole-Home Air Purifiers, MERV 11
Regular price From $78.76 USDRegular priceUnit price / per -
Philanthro PHIL20255M11 - 20" x 25" x 5" Air Filter, MERV 11
Regular price From $35.28 USDRegular priceUnit price / per -
Trion Air Bear T13-20251-6P - 20" x 25" x 1" Pleated Air Filter (6-Pack), MERV 13
Regular price $48.34 USDRegular priceUnit price / per -
Carrier EXPXXFIL0324 - EZ Flex 24" Expandable Air Filter Merv 13, Filter Only
Regular price $63.69 USDRegular priceUnit price / per -
Trion Air Bear T11-20201-6P - 20" x 20" x 1" Pleated Air Filter (6-Pack), MERV 11
Regular price $38.16 USDRegular priceUnit price / per -
Trion Air Bear T11-20251-6P - 20" x 25" x 1" Pleated Air Filter (6-Pack), MERV 11
Regular price $43.63 USDRegular priceUnit price / per -
Trion Air Bear T08-20251-6P - 20" x 25" x 1" Pleated Air Filter (6-Pack), MERV 8
Regular price $37.53 USDRegular priceUnit price / per -
Glasfloss ZLP16251 - 16" x 25" x 1" Z-Line Pleated Air Filter, MERV 10
Regular price From $19.80 USDRegular priceUnit price / per -
Trion 272649-08-205 - (2 Pack) 16" x 25" x 4.3" Trion OEM-2 Honeywell Replacement Air Filter, MERV 8
Regular price $44.51 USDRegular priceUnit price / per -
Honeywell POPUP1625 - 16" x 25" x 5" MERV 11 POPUP Air Filter
Regular price From $64.13 USDRegular priceUnit price / per -
Trion Air Bear T08-16251-6P - 16" x 25" x 1" Pleated Air Filter (6-Pack), MERV 8
Regular price $33.78 USDRegular priceUnit price / per -
Aprilaire 913 - Healthy Home Air Filter For Aprilaire Whole-Home Air Purifiers, MERV 13, For Most Common Allergens
Regular price $71.90 USDRegular priceUnit price / per -
Honeywell TRN2621T1 - Trane Perfect Fit Replacement Air Filter 26" x 21" x 5" MERV 10
Regular price From $73.16 USDRegular priceUnit price / per -
Trion Air Bear 255649-104 - 16" x 20" x 5" Pleated Air Filter, MERV 8
Regular price From $31.62 USDRegular priceUnit price / per -
Goodman AMP-13-2020-45 - 20" x 20" x 5" Clean Comfort Air Filter, MERV 13
Regular price From $44.36 USDRegular priceUnit price / per -
Lennox X8305 HCXF14-11 Kit 20" x 20" x 5" MERV 11 - Healthy Climate Expandable Filter - Includes Filter AND Frame
Regular price $94.84 USDRegular priceUnit price / per -
Lennox X8303 HCXF16-11 Kit 16" x 25" x 5" MERV 11 - Healthy Climate Expandable Filter - Includes Filter AND Frame
Regular price $90.02 USDRegular priceUnit price / per -
Carrier GAPCCCAR1620 - Infinity Air Purifier Filter 16" x 20" x 5" MERV 15
Regular price From $125.31 USDRegular priceUnit price / per -
Aprilaire 813 - Air Filter - Fits Aprilaire Filter Grille 2025FG And Air Cleaner Models By Carrier, General, Honeywell, Lennox, Trion, And Ultravation
Regular price $71.40 USDRegular priceUnit price / per -
Glasfloss ZLP16201 - 16" x 20" x 1" Z-Line Pleated Air Filter, MERV 10
Regular price From $19.44 USDRegular priceUnit price / per -
Lennox 26Z91 - 20" x 22" x 5" Healthy Climate Carbon Clean HCF19-16 Air Filter, MERV 16
Regular price From $168.94 USDRegular priceUnit price / per
Collection: Replacement Furnace Filters and Air Filters
All HVAC systems need air filters - DiscountFurnaceFilter.com carries air filters for all HVAC systems! Browse our vast inventory of genuine, OEM filters manufactured by the heating and cooling brands you know and trust, including:
- Aprilaire
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- Trane
- Trion Air Bear
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Furnace filters keep your HVAC clean and improve air quality within your home. When you change your air filters, you re-up protection for your heating and cooling equipment, safeguarding its internal components from performance-diminishing contaminant buildup. Also, keep these contaminants out of your air supply to reduce allergy symptoms and boost indoor comfort!
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