Discount Filters Coupons & Promo Codes

As of Thursday, August 6 2020 Discount Filters currently has 13 Sales and 4 Promo Codes available. Today's best pick is this 10% off Sitewide. promo code

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10% Off

Online-Code

10% off Sitewide.

exp: 2/7/2026

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$20 Off

Online-Code

$20 off orders of $125+.

exp: 2/12/2024

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$15 Off

Online-Code

$15 off orders of $100+.

exp: 2/27/2024

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$10 Off

Online-Code

$10 off orders of $75+.

exp: 2/27/2024

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Shop New and Cool and Get Free Shipping and Returns.

exp: 11/11/2025

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Shop Furnace Filters and Get Free Shipping and Returns.

exp: 11/11/2025

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Shop Shower Filters and Get Free Shipping and Returns.

exp: 11/11/2025

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Shop Pool and Spa and Get Free Shipping and Returns.

exp: 11/11/2025

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Shop Humidifier Filters and Get Free Shipping and Returns.

exp: 11/11/2025

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Shop Air Filters and Get Free Shipping and Returns.

exp: 11/11/2025

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Shop Refrigerator Filters and Enjoy Free Shipping and Returns.

exp: 11/11/2025

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Sale

Sale

Build Your Own Custom Cleaning Kit: Selected Products Now: 5 for $35.00.

exp: 2/14/2026

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$5 Off

Sale

$5 off any Order When You Buy a Clear Choice Fridge Filter and An AirX Air Filter in the Same Order.

exp: 8/29/2021

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Sale

Sale

Make DIY Mask With MERV 14 Filter Media.

exp: 5/1/2026

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Shop for Last-Minute Gifts.

exp: 12/5/2025

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Sale

Sale

Refrigerator Water Filters.

exp: 8/12/2024

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Sale

Sale

Fridge Filters.

exp: 8/12/2024

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