Collection: Furnace & Air Conditioner Filters
Discover our extensive selection of furnace and air conditioning filters, also known as air filters or HVAC filters. We offer AC filters for top brands, including Carrier, Honeywell, Lennox, Aprilaire, AirBear, and Trane.
Our inventory features:
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Over 50 standard sizes in 1-inch, 2-inch, and 4-inch thicknesses
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MERV ratings of 8, 11, and 13 for various filtration needs
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Both standard and hard-to-find air filter sizes
Find the perfect filter for your home or business at competitive prices. Whether you need a standard replacement or a specialized size, we've got you covered.
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Atomic Compatible for Lennox Y6606 Healthy Climate® 20x21x5 MERV 16 PureAir 100908-12 Filter for PCO3-14-16
Vendor:Regular price $ 85.99 USDRegular priceUnit price / per$ 189.95 USDSale price $ 85.99 USDSale -
Atomic Compatible for X6672 Lennox HCF16-16 Healthy Climate 16x25x5 MERV 16 Filter
Vendor:Regular price From $ 65.99 USDRegular priceUnit price / per$ 109.95 USDSale price From $ 65.99 USDSale -
Atomic Compatible for X6675 Lennox 20x25x5 MERV 16 Filter for HCC20-28 Actual Size 19 7/8 x 24 7/8 x 4 3/8
Vendor:Regular price From $ 84.99 USDRegular priceUnit price / per$ 179.00 USDSale price From $ 84.99 USDSale -
Atomic Compatible for Lennox X6669 MERV 16 Filter 21x26x4 fits PCO-20C
Vendor:Regular price From $ 95.99 USDRegular priceUnit price / per$ 199.95 USDSale price From $ 95.99 USDSale -
Atomic Compatible for Lennox X6666 17x26x4 (16 5/8x26x4) OEM MERV 16 Replacement Furnace Filter
Vendor:Regular price From $ 89.99 USDRegular priceUnit price / per$ 169.95 USDSale price From $ 89.99 USDSale -
Atomic Compatible for Carrier AGAPXCAR2020 / PGAPXCAR2020 20x20x3 Air Purifier Replacement Cartridge for PGAPAXX2020 DGAPAXX2020
Vendor:Regular price From $ 97.99 USDRegular priceUnit price / per$ 129.95 USDSale price From $ 97.99 USDSale -
Atomic Compatible for Carrier PGAPXCAR2025 / AGAPXCAR2025 Air Purifier Replacement Cartridge Nominal size 20x25x3 - Actual size 21 x 24.9 x 2.6
Vendor:Regular price From $ 89.99 USDRegular priceUnit price / per$ 169.95 USDSale price From $ 89.99 USDSale -
Atomic Compatible for Carrier PGAPXCAR2420 Air Purifier Replacement Cartridge Nominal size: 24x20x3 - Actual size 24.5 x 21.9 x 2.6
Vendor:Regular price From $ 94.99 USDRegular priceUnit price / per$ 129.95 USDSale price From $ 94.99 USDSale -
Atomic Compatible for Trane FLRQB5AH18M11 17.7x20x4.7 MERV 11 Filter - 2 Pack
Vendor:Regular price $ 69.97 USDRegular priceUnit price / per$ 94.96 USDSale price $ 69.97 USDSale -
Atomic Compatible for Trane FLRQB5FR21M11 20.2x26x4.7 MERV 11 Filter - 2 Pack
Vendor:Regular price $ 79.99 USDRegular priceUnit price / per$ 94.96 USDSale price $ 79.99 USDSale -
Carrier EXPXXUNV0024 EZ-FLEX Filter Media 24x25x4.5
Vendor:Regular price From $ 84.99 USDRegular priceUnit price / per$ 109.95 USDSale price From $ 84.99 USDSale -
Atomic Compatible for Trane FLRQB5FR17M11 16.7x26x4.7 MERV 11 Filter - 2 Pack
Vendor:Regular price $ 69.99 USDRegular priceUnit price / per$ 94.96 USDSale price $ 69.99 USDSale -
Atomic Compatible for Trane FLRQB5AH21M11 20.7x20x4.7 MERV 11 Filter - 2 Pack
Vendor:Regular price $ 68.97 USDRegular priceUnit price / per$ 94.96 USDSale price $ 68.97 USDSale -
20x20x4 MERV 11 Furnace Filter compatible for TopTech TT-FM-2020 TTFM2020, TT-FM-2020QB for use in Carrier TT-MAC-2122 TT-MAC-2020 (3 Pack)
Vendor:Regular price $ 79.99 USDRegular priceUnit price / per$ 149.99 USDSale price $ 79.99 USDSale -
16x25x4 MERV 11 Furnace Filter compatible for TopTech TT-FM-1625 TTFM1625 for use in Carrier TechPure TT-MAC-1625, tt-fm-1625qb - (3 Pack)
Vendor:Regular price $ 85.99 USDRegular priceUnit price / per$ 139.99 USDSale price $ 85.99 USDSale -
16x20x4 MERV 11 Furnace Filter compatible for TopTech TT-FM-1620, TTFM1620, tt-fm-1620qb for use in Carrier TechPure TT-MAC-1722 TT-MAC-1620-3 Pack
Vendor:Regular price $ 79.99 USDRegular priceUnit price / per$ 139.95 USDSale price $ 79.99 USDSale