Furnace Filters

Browse our selection of high-quality furnace filters designed to improve indoor air quality and maximize the efficiency of your HVAC system. Available in a variety of sizes and MERV ratings, these filters are built to capture dust, allergens, and other airborne particles, ensuring cleaner air for your home or business. Shop now to find the perfect OEM furnace filters that fit your system’s specifications and keep your environment fresh.

  • -20% Sale
Koch Multi-Pleat Replacement Filter - Six Pack Koch Multi-Pleat Replacement Filter - Single
Koch Air Filter 16 x 20 x 4 MERV 11 Multi-Pleat XL11 Pleated Air Filter - 6 Pack
Koch Filter
$139.66 USD -20% $174.57 USD
$139.66 USD
  • -20% Sale
Koch Multi-Pleat Replacement Filter - Twelve Pack Koch Multi-Pleat Replacement Filter - Single
Koch Air Filter 18 x 18 x 1 MERV 8 Pleated Air Filter - 12 Pack
Koch Filter
$109.95 USD -20% $137.43 USD
$109.95 USD
  • -20% Sale
Koch Multi-Pleat Replacement Filter - Twelve Pack Koch Multi-Pleat Replacement Filter - Single
Koch Air Filter 17 x 25 x 1 MERV 8 Pleated Air Filter - 12 Pack
Koch Filter
$203.23 USD -20% $254.03 USD
$203.23 USD
  • -11% Sale
Koch Multi-Pleat Replacement Filter - Twelve Pack Koch Multi-Pleat Replacement Filter - Single
Koch Air Filter 15 x 20 x 1 MERV 8 Air Filter - 12 Pack
Koch Filter
$107.79 USD -11% $119.95 USD
$107.79 USD
Koch Multi-Pleat Replacement Filter - Twelve Pack Koch Multi-Pleat Replacement Filter - Single
Koch Air Filter 20 x 22 x 1 MERV 11 Pleated Air Filter - 12 Pack
Koch Filter
$199.95 USD --10% $180.34 USD
$199.95 USD
  • -16% Sale
Koch Multi-Pleat Replacement Filter - Twelve Pack Koch Multi-Pleat Replacement Filter - Single
Koch Air Filter 18 x 25 x 1 MERV 8 Pleated Air Filter - 12 Pack
Koch Filter
$118.95 USD -16% $139.95 USD
$118.95 USD
  • Sold out
POPUP2025 20 x 25 x 5 Air Filter
Honeywell POPUP2025 20 x 25 x 5 Air Filter
Honeywell
$22.00 USD -100% $0.00 USD
$22.00 USD
  • Sold out
POPUP2020 20 x 20 x 5 Air Filter
Honeywell POPUP2020 20 x 20 x 5 Air Filter
Honeywell
$88.95 USD -100% $0.00 USD
$88.95 USD
  • -20% Sale
Koch Multi-Pleat Replacement Filter - Six Pack Koch Multi-Pleat Replacement Filter - Single
Koch Air Filter 24 x 24 x 4 MERV 13 Pleated Air Filter - 6 Pack
Koch Filter
$294.83 USD -20% $368.53 USD
$294.83 USD
  • -21% Sale
Koch Multi-Pleat Replacement Filter - Six Pack Koch Multi-Pleat Replacement Filter - Single
Koch Air Filter 16 X 20 X 4 MERV 13 Multi-Pleat GREEN13 Pleated Air Filter - 6 Pack
Koch Filter
$217.27 USD -21% $271.59 USD
$217.27 USD
  • -20% Sale
Koch Multi-Pleat Replacement Filter - Twelve Pack Koch Multi-Pleat Replacement Filter - Single
Koch Air Filter 20 x 24 x 2 MERV 8 Pleated Air Filter - 12 Pack
Koch Filter
$155.33 USD -20% $194.16 USD
$155.33 USD
  • -11% Sale
AprilAire 416 MERV 16 Air Filter - 6 Pack | 3 YEAR FILTER BUNDLE AprilAire 416 MERV 16 Air Filter - 6 Pack | 3 YEAR FILTER BUNDLE
AprilAire 416 MERV 16 Air Filter - 6 Pack | 3 YEAR FILTER BUNDLE
AprilAire
$678.28 USD -11% $759.38 USD
$678.28 USD
Honeywell POPUP1620 MERV11 Air Filter - 2 Pack
Honeywell POPUP1620 MERV11 Air Filter - 2 Pack
Honeywell
$127.22 USD -100% $0.00 USD
$127.22 USD
  • -8% Sale
Honeywell FC100A1029 16 x 25 x 5 Air Filter - 5 Pack
Honeywell FC100A1029 16 x 25 x 5 Air Filter - 5 Pack
Honeywell
$258.27 USD -8% $279.59 USD
$258.27 USD
FC100A1003 16 x 20 x 5 Filter 5 Pack
Honeywell FC100A1003 16 x 20 x 5 Filter 5 Pack
Honeywell
$139.99 USD -100% $0.00 USD
$139.99 USD
  • -10% Sale
Koch Multi-Pleat Replacement Filter - Twelve Pack Koch Multi-Pleat Replacement Filter - Single
Koch Air Filter 30 x 30 x 1 MERV 8 MultiPleat Air Filter - 12 Pack
Koch Filter
$408.38 USD -10% $449.95 USD
$408.38 USD
Waterfurnace Geothermal 30x31.5 x 4 MERV 8 Koch Air Filter (12PK)
Waterfurnace Geothermal 30x31.5 x 4 MERV 8 Koch Air Filter (12PK)
Waterfurnace Geothermal
$737.58 USD -100% $0.00 USD
$737.58 USD
  • -24% Sale
Koch Multi-Pleat Replacement Filter - Twelve Pack Koch Multi-Pleat Replacement Filter - Single
Koch Air Filter 20 x 20 x 1 MERV 13 Pleated Air Filter - 12 Pack
Koch Filter
$427.33 USD -24% $559.16 USD
$427.33 USD
  • -19% Sale
Koch Multi-Pleat Replacement Filter - Twelve Pack Koch Multi-Pleat Replacement Filter - Single
Koch Air Filter 14 x 24 x 1 MERV 8 Pleated Air Filter - 12 Pack
Koch Filter
$129.63 USD -19% $159.14 USD
$129.63 USD
  • -21% Sale
Koch Multi-Pleat Replacement Filter - Six Pack Koch Multi-Pleat Replacement Filter - Single
Koch Air Filter 20 x 20 x 4 MERV 13 Pleated Air Filter - 6 Pack
Koch Filter
$392.21 USD -21% $490.27 USD
$392.21 USD
  • -21% Sale
Koch Multi-Pleat Replacement Filter - Six Pack Koch Multi-Pleat Replacement Filter - Single
Koch Air Filter 20 x 25 x 4 MERV 13 Pleated Air Filter - 6 Pack
Koch Filter
$457.22 USD -21% $571.53 USD
$457.22 USD
  • -20% Sale
Koch Multi-Pleat Replacement Filter - Twelve Pack Koch Multi-Pleat Replacement Filter - Single
Koch Air Filter 20 x 20 x 2 MERV 13 Pleated Air Filter - 12 Pack
Koch Filter
$447.33 USD -20% $559.16 USD
$447.33 USD
  • -20% Sale
Koch Multi-Pleat Replacement Filter - Twelve Pack Koch Multi-Pleat Replacement Filter - Single
Koch Air Filter 20 x 25 x 2 MERV 13 Pleated Air Filter - 12 Pack
Koch Filter
$522.37 USD -20% $652.96 USD
$522.37 USD
  • -20% Sale
Koch Multi-Pleat Replacement Filter - Twelve Pack Koch Multi-Pleat Replacement Filter - Single
Koch Air Filter 16 x 20 x 1 MERV 13 Pleated Air Filter - 12 Pack
Koch Filter
$193.77 USD -20% $242.21 USD
$193.77 USD
  • -20% Sale
Koch Multi-Pleat Replacement Filter - Twelve Pack Koch Multi-Pleat Replacement Filter - Single
Koch Air Filter 16 x 20 x 1 MERV 11 Pleated Air Filter - 12 Pack
Koch Filter
$122.37 USD -20% $152.96 USD
$122.37 USD
  • -21% Sale
Koch Multi-Pleat Replacement Filter - Twelve Pack Koch Multi-Pleat Replacement Filter - Single
Koch Air Filter 20 x 22 x 1 MERV 13 Pleated Air Filter - 12 Pack
Koch Filter
$256.93 USD -21% $321.17 USD
$256.93 USD
  • -20% Sale
Koch Multi-Pleat Replacement Filter - Twelve Pack Koch Multi-Pleat Replacement Filter - Single
Koch Air Filter 24 x 24 x 1/2 MERV 11 Pleated Air Filter - 12 Pack
Koch Filter
$115.28 USD -20% $144.10 USD
$115.28 USD
  • -19% Sale
Koch Multi-Pleat Replacement Filter - Twelve Pack Koch Multi-Pleat Replacement Filter - Single
Koch Air Filter 24 x 24 x 2 MERV 11 Pleated Air Filter - 12 Pack
Koch Filter
$217.43 USD -19% $266.13 USD
$217.43 USD
  • -21% Sale
Koch Multi-Pleat Replacement Filter - Twelve Pack Koch Multi-Pleat Replacement Filter - Single
Koch Air Filter 24 x 30 x 1 MERV 8 Pleated Air Filter - 12 Pack
Koch Filter
$117.34 USD -21% $146.68 USD
$117.34 USD
  • -20% Sale
Koch Multi-Pleat Replacement Filter - Twelve Pack Koch Multi-Pleat Replacement Filter - Single
Koch Air Filter 24 x 25 x 1 MERV 8 Pleated Air Filter - 12 Pack
Koch Filter
$187.97 USD -20% $234.96 USD
$187.97 USD
  • -20% Sale
Koch Multi-Pleat Replacement Filter - Twelve Pack Koch Multi-Pleat Replacement Filter - Single
Koch Air Filter 24 x 28 x 1 MERV 8 Pleated Air Filter - 12 Pack
Koch Filter
$187.97 USD -20% $234.96 USD
$187.97 USD
  • -20% Sale
Koch Multi-Pleat Replacement Filter - Six Pack Koch Multi-Pleat Replacement Filter - Single
Koch Air Filter 16 x 20 x 4 MERV 8 Multi-Pleat XL8 Pleated Air Filter - 6 Pack
Koch Filter
$128.66 USD -20% $160.82 USD
$128.66 USD