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Discount Filter Store Promo Codes & Coupons

    These deals have expired, but some might still work.

    • 10%
      Off
      Discount Filter Store

      10% Off Sitewide

      Verified

      Expired Jan 19, 2018

      Details:

      Enter promo code at checkout to get 10% off at Discount Filter Store. Exclusions may apply.


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    • Details:

      Did you make a New Year's resolution to get healthy in 2018? We can help! Changing your filters regularly helps make sure your home is as healthy as it can be. Get 10% OFF & FREE SHIPPING on everything site-wide when you use promo code HEALTHY10 through January 11th.


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    • Details:

      Water quality is an important factor if you plan to be healthier in 2018. Let us help you stay healthy while saving you time and money: replace your filters today and start the new year on the right track. Get 10% OFF & FREE SHIPPING on everything site-wide when you use promo code NEWYEAR10 through January 7th.


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    • Details:

      Enter promo code at checkout to get 20% off at Discount Filter Store. Exclusions may apply.


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    • Details:

      Enter promo code at checkout to get 15% off at Discount Filter Store. Exclusions may apply.


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    • Details:

      Enter promo code at checkout to get 30% off at Discount Filter Store. Exclusions may apply.


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    • Details:

      Why wait to save? Order now and beat the rush with our Black Friday pre-sale. Get 30% OFF Tier1® brand filters when you use promo code FRIDAY30 through Thursday, November 23rd.


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    • 10%
      Off
      Discount Filter Store

      10% Off Any Order

      Verified

      3 used this deal

      Expired Oct 27, 2017

      Details:

      Halloween may be creeping up on you, but this offer is good enough to scare away the ghosts and ghouls. Get 10% OFF everything site-wide when you use promo code SPOOKY10 through October 26th.


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    • 10%
      Off
      Discount Filter Store

      10% Off Any Order

      Verified

      Expired Sep 22, 2017

      Details:

      With the seasons changing, now is the perfect time to change your filters out for fresh, new replacements. It's even better when you consider how much you'll save if you order today. Get 10% OFF everything site-wide when you use promo code SALE10 through September 21st.


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    • Details:

      No promo code required. Click "Get the deal" to be taken to this offer on Discount Filter Store. Exclusions may apply.


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    • Details:

      "APPLE10" promo offer is valid through October 5, 2017 and is not valid together or with any other promotional offers. Shipping refers to standard shipping for U.S. customers in the continental U.S. only. "TIER20" promo offer is valid on Tier1® brand refrigerator filters only and is not valid together or with any other promotional offers. "HUMID20" promo offer is valid on Tier1® brand humidification filters only and is not valid together or with any other promotional offers. "AIR30" promo offer is valid on Tier1® brand furnace filters only and is not valid together or with any other promotional offers.


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    • Details:

      "APPLE10" promo offer is valid through October 5, 2017 and is not valid together or with any other promotional offers. Shipping refers to standard shipping for U.S. customers in the continental U.S. only. "TIER20" promo offer is valid on Tier1® brand refrigerator filters only and is not valid together or with any other promotional offers. "HUMID20" promo offer is valid on Tier1® brand humidification filters only and is not valid together or with any other promotional offers. "AIR30" promo offer is valid on Tier1® brand furnace filters only and is not valid together or with any other promotional offers.


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    • Details:

      Tier1® filters provide high quality and maximum performance, but at a discounted rate. Our products do more than just filter out contaminants, they help you create and maintain a healthy home. Get 40% OFF & FREE SHIPPING on Tier1® brand filters when you use promo code TIER40SHIP through September 30th.


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    • 30%
      Off
      Discount Filter Store

      30% Off + Free Shipping on Tier1 Air Order

      Verified

      4 used this deal

      Expired Sep 15, 2017

      Details:

      "FRIDGE50SHIP" promo offer is valid on Tier1® brand refrigerator filters only through September 14, 2017 and is not valid together or with any other promotional offers. "WATER30SHIP" promo offer is valid on Tier1® brand water filters only through September 14, 2017 and is not valid together or with any other promotional offers. "AIR30SHIP" promo offer is valid on Tier1® brand air and humidification filters only through September 14, 2017 and is not valid together or with any other promotional offers. "FREESHIP10" promo offer is valid through September 14, 2017 and is not valid together or with any other promotional offers. Shipping refers to standard shipping for U.S. customers in the continental U.S. only.


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    • Details:

      "FRIDGE50SHIP" promo offer is valid on Tier1® brand refrigerator filters only through September 14, 2017 and is not valid together or with any other promotional offers. "WATER30SHIP" promo offer is valid on Tier1® brand water filters only through September 14, 2017 and is not valid together or with any other promotional offers. "AIR30SHIP" promo offer is valid on Tier1® brand air and humidification filters only through September 14, 2017 and is not valid together or with any other promotional offers. "FREESHIP10" promo offer is valid through September 14, 2017 and is not valid together or with any other promotional offers. Shipping refers to standard shipping for U.S. customers in the continental U.S. only.


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    • Details:

      "FRIDGE50SHIP" promo offer is valid on Tier1® brand refrigerator filters only through September 14, 2017 and is not valid together or with any other promotional offers. "WATER30SHIP" promo offer is valid on Tier1® brand water filters only through September 14, 2017 and is not valid together or with any other promotional offers. "AIR30SHIP" promo offer is valid on Tier1® brand air and humidification filters only through September 14, 2017 and is not valid together or with any other promotional offers. "FREESHIP10" promo offer is valid through September 14, 2017 and is not valid together or with any other promotional offers. Shipping refers to standard shipping for U.S. customers in the continental U.S. only.


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    Updated

    $21

    Average Savings

    14

    Active Coupons

    Filter Coupons
    About Discount Filter Store Deals

    Discount Filter Store currently has 14 active coupons. On average, our Discount Filter Store coupons save shoppers $21.09. 🔥 Today's top offer: 15% Off All Orders + Free Shipping. No deals available for your product? Sign up for deal alerts and get updates whenever a new Discount Filter Store promo code is released.

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