Discount Water Filters and Air Filters at Discount Filter Store.com

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No Worries...
  • Your filters are guaranteed to be the right fit!
  • Our products are price match guaranteed!
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3M Filtrete Air Conditioner & Furnace Air Filters

Replace your old air filter with a Filtrete air/furnace filter from Discount Filter Store

Clean air filters can reduce pollen and allergens in the air while reducing the energy cost of your home's HVAC system. Save time and money by ordering the right filter at the right price, delivered to your door!  Choose from five different styles of 3M Filtrete air filters, in over 30 sizes, each available with four different MERV Ratings, 8, 11, 12, and 15.  No matter what you’re wanting to filter out of the air, whether it just lint dust, and pet hair or things including pollen, dust mites, smoke, and bacteria, Discount Filter Store has a 3M Filtrete air filter to meet your needs.

All Filtrete air filters are designed with the Filtrete™ brand 3-in-1 technology from 3M, that pulls in and traps unwanted particles, while letting the cleaner air flow through, helping you home stay fresher, cleaner, and healthier, longer.

Looking for another brand of air filters, Discount Filter Store’s line of Tier1 air filters, fits hundreds of the industry’s most popular air filter brands, including, Aprilaire, Carrier, Honeywell, Lennox, and more; all available at prices that won’t break your bank.

Shop our huge selection of Filtrete air filters today and enjoy a fresh, clean home.

1-Inch Air Filter Selection Guide

Filtrete Dust & Pollen
Filtrete Dust & Pollen Reduction Filter
Filtrete Micro Allergen
Filtrete Micro Allergen Filter
Filtrete Ultra Allergen
Filtrete Ultra Allergen Filter
Filtrete Ultimate Allergen
Filtrete Ultimate Allergen Filter
Filtrete Elite Allergen
Filtrete Elite Allergen Filter
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Items 193 to 240 of 355 total

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  • PX10-9-78 Purtrex Replacement Filter Cartridge

    PX10-9-78 Purtrex Replacement Water Filter

    $4.05
    MSRP: $8.04
    Save 50%
  • PX20-20 Purtrex Replacement Filter Cartridge

    PX20-20 Purtrex Replacement Water Filter

    $10.99
    MSRP: $14.99
    Save 27%
  • PX20-9-78 Purtrex Replacement Filter Cartridge

    PX20-9-78 Purtrex Water Filter Cartridge

    $4.09
    MSRP: $9.99
    Save 59%
  • PX30-9-78 Purtrex Replacement Filter Cartridge

    PX30-9-78 Purtrex Replacement Water Filter Cartridge

    $4.09
    MSRP: $9.99
    Save 59%
  • RS14-DS OmniFilter Whole House Filter Replacement Cartridge (2-Pack)
  • FPMB-BB20-10 Watts Flo-Pro Whole House Water Filter Cartridge
  • FPMB20-20 Watts Flo-Pro Whole House Replacement Filter Cartridge
  • FPMB20-978 Watts Flo-Pro Replacement Filter Cartridge

    FPMB20-978 Watts Flo-Pro Replacement Water Filter

    $3.99
    MSRP: $5.16
    Save 23%
  • FPMB5-20 Watts Flo-Pro Replacement Filter Cartridge

    FPMB5-20 Watts Flo-Pro Water Filter Cartridge

    $5.99
    MSRP: $6.89
    Save 13%

    Out of stock

  • FPMB5-978 Watts Flo-Pro Replacement Filter Cartridge

    FPMB5-978 Watts Flo-Pro Water Filter Cartridge

    $4.99
    MSRP: $5.16
    Save 3%
  • MAXETW-FF20 Watts C-MAX Whole House Water Filter Cartridge
  • WHKF-DB1 Whirlpool Undersink Replacement Filter Cartridge
  • Whirlpool WHKF-DB2 Undersink Replacement Water Filter Cartridge
  • GX01-9-78 Hytrex Replacement Filter Cartridge

    GX01-9-78 Hytrex Replacement Water Filter Cartridge

    $5.49
    MSRP: $8.61
    Save 36%
  • GX05-9-78 Hytrex Replacement Filter Cartridge

    GX05-9-78 Hytrex Replacement Water Filter Cartridge

    $6.19
    MSRP: $10.99
    Save 44%

    Out of stock

  • GX20-9-78 Hytrex Replacement Filter Cartridge

    GX20-9-78 Hytrex Water Filter Cartridge

    $6.89
    MSRP: $8.61
    Save 20%
  • GX75-9-78 Hytrex Replacement Filter Cartridge

    GX75-9-78 Hytrex Water Filter Cartridge

    $5.05
    MSRP: $8.61
    Save 41%
  • MATRIKX-1-10 KX Technologies MatrikX Undersink Filter Replacement Cartridge
  • MATRIKX-1-20 KX Technologies MatrikX Whole House Filter Replacement Cartridge
  • MATRIKX-1-HD20 KX Technologies MatrikX Whole House Filter Replacement Cartridge
  • MATRIKX-5-10 KX Technologies MatrikX Undersink Filter Replacement Cartridge
  • MATRIKX-CR1-10 KX Technologies MatrikX Whole House Filter Replacement Cartridge
  • MATRIKX-CR1-20 KX Technologies MatrikX Whole House Filter Replacement Cartridge
  • MATRIKX-CTO2-10 KX Technologies MatrikX Undersink Filter Replacement Cartridge
  • MATRIKX-Pb1-HD20 KX Technologies MatrikX Whole House Filter Replacement Cartridge
  • PLEKX-10-10 KX Technologies PlekX Whole House Filter Replacement Cartridge
  • RS16 OmniFilter Whole House Replacement Filter Cartridge
  • OMB934-1L Omnipure Alpha Series Undersink Filter Replacement Cartridge
  • CBC-10 Pentek Replacement Filter Cartridge
  • CBC-20 Pentek Replacement Filter Cartridge
  • CBC20-BB Pentek Replacement Filter Cartridge
  • CBC-BB Pentek Whole House Filter Replacement Cartridge
  • CBR2-10 Pentek Undersink Filter Replacement Cartridge
  • CBR2-10R Pentek Undersink Filter Replacement Cartridge

    CBR2-10R Pentek Undersink Filter Replacement Cartridge

    $19.59
    MSRP: $27.99
    Save 30%
  • CBU-10 Pentek Whole House Filter Replacement Cartridge

    CBU-10 Pentek Whole House Filter Replacement Cartridge

    $19.99
    MSRP: $21.95
    Save 9%
  • CCBC-10 Pentek Undersink Filter Replacement Cartridge

    CCBC-10 Pentek Undersink Filter Replacement Cartridge

    $19.59
    MSRP: $27.99
    Save 30%
  • CEP-10E Pentek Replacement Filter Cartridge
  • SDC-25-1010 Hydronix Sediment Water Filter Cartridge

    SDC-25-1010 Hydronix Sediment Water Filter Cartridge

    $4.99
    MSRP: $6.89
    Save 28%
  • SDC-25-2001 Hydronix Sediment Water Filter Cartridge

    SDC-25-2001 Hydronix Sediment Water Filter Cartridge

    $6.99
    MSRP: $8.04
    Save 13%
  • CB-25-1010 Hydronix Carbon Water Filter Replacement

    CB-25-1010 Hydronix Carbon Water Filter Replacement

    $8.99
    MSRP: $12.99
    Save 31%
  • CB-25-1001 Hydronix Carbon Water Filter

    CB-25-1001 Hydronix Carbon Water Filter

    $9.99
    MSRP: $13.79
    Save 28%
  • CQE-RC-04000 Crystal Quest Carbon Block Water Filter Cartridge

Items 193 to 240 of 355 total

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