Discount Filter Store Promo Codes and Coupons September 2025

Discount Filter Store

DiscountFilterStore.com is an online retailer specializing in water filters, air filters, and related accessories at competitive prices. They offer a wide selection of replacement filters for major brands and appliances, providing both residential and commercial filtration solutions.

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Today's Discount Filter Store discount codes

TOP PICK

50% off

1 uses

high

worked 7 months ago

Score 50% off with discount code

40% off

6 uses

high

worked 7 months ago

Take 40% off with code

15% off

1 uses

high

worked 7 months ago

Get 15% off with promo code

70% off

6 uses

high

worked 3 months ago

Save 70% on Clorox Pool and Spa Filters with code

Featured Discount Filter Store Products

DA97-17376B/HAF-QIN Samsung Refrigerator Water Filter

The DA97-17376B/HAF-QIN Samsung Refrigerator Water Filter provides a clean crisp glass of water and clear ice right from your fridge. This OEM filter fits french door and side by side models from Samsung and others. With quick and easy installation, replacement is worry and hassle free. Enjoy the peace of mind behind knowing your water and ice is pure and filtered to reduce unwanted contaminants. Order your DA97-17376B/HAF-QIN Samsung Refrigerator Water Filter today!

USD 46.18

Pro Products Pot Perm Iron Filter Regenerant (KP65N, Free Flow 76 oz.)

Pot Perm iron filter regenerant from Pro Products converts iron and manganese into an insoluble oxide making it easy to filter out of your water and to maintain the performance of your greensand iron filter. At room temperature (68°F), eight ounces of dry Pot Perm Plus will dissolve in one gallon of water. For every cubic foot of softener filter media, it is recommended to use 2-4 ounces of dry Pot Perm Plus. It can be applied directly to the filter or dissolved in water before adding it as a solution. Order the Pro Products Pot Perm Free Flow iron filter regenerant today.

USD 54.01

8 X 4-1/4 Clorox Platinum Edition Premium Pool Filter | Replacement for Intex type A or C, Intex type A or C, Unicel C-4607, Pleatco PC7-120, Filbur FC-3710

The CLX-AC-MB Replacement Pool and Spa Filter fits Intex type A or C filter systems. CloroxTM Pool & Spa Platinum Edition Premium Pool Filters are manufactured with new meltblown technology that revolutionizes the pool filter industry. Meltblown pool filters offer enhanced circulation improving the suction and surface skimming action of your filter. They also offer superior filtration by filtering particles all the way down to 3-5 microns in size to give you crystal clear water. On top of providing the best filtration on the market the meltblown construction of the filters utilizes depth filtration to provide maximum dirt holding capacity. Freeing you from the monthly chore of filter cleaning so you can spend less time maintaining your pool and more time enjoying it. Upgrade your pool experience today with new technology from a brand you trust.

USD 8.39

AWP40B-V 4 1/2 x 10 Inch Home Filter Housing by Viqua

"The AWP40B-V 4 1/2 x 10 Inch Home Filter Housing by Viqua is a high-flow filter housing for 4 1/2 x 10-inch nominal cartridges. This item features a pressure relief valve and is certified with the NSF 42 standard which represents its ability to reduce aesthetic impurities such as chlorine taste/odor. The AWP40B-V 4 1/2 x 10 Inch Home Filter Housing by Viqua is an important component of your water filtration process. A mounting bracket and filter wrench come included with the AWP40B-V system. Invest in clean water today!"

USD 158.00

What Discount Filter Store coupons are available today?

We track so many discount codes. Read about today's Discount Filter Store coupon statistics.

129

Discount Filter Store deals available today

Active Discount Filter Store codes

50% off

Biggest discount available

Get the best Discount Filter Store promo codes and coupons that actually work. Our community of sustainability minded shoppers helps you save by testing and sharing:

Verified promo codes with live success rates from recent shoppers!
Exclusive single-use codes shared by our community (129 active codes).
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Deals for those who want extra savings opportunities
Insider savings tips from experienced Discount Filter Store shoppers who know the best deals.

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Note: Our community tests every Discount Filter Store promo code and shares results in real-time. Check success rates and shopping tips in the activity feed to find what works best for your purchase.

15% off

1 uses

high

worked about 2 months ago

15% Off Tier1 And Tier1 Plus Or Uswf Fridge Filters (Must Order Plus All Whole House Cartridges And Air And Humidifier Filters) Not Applicable To Hm Digital And Doulton Products 2024 at Discount Filter Store

25% off

1 uses

high

worked about 1 month ago

25% Off All Uswf Replacement Filters (Must Order Not Applicable To Hm Digital Products Or Doulton Products) Not Valid Together Or With Any Other Promotional Offers at Discount Filter Store

15% off

0 uses

high

worked about 1 month ago

15% Off Whole House Cartridge Filter Finder at Discount Filter Store

15% off

0 uses

high

worked 29 days ago

15% Off Tier1 And Tier1 Plus Or Uswf Fridge Filters And More (Must Order Not Applicable To Hm Digital Products Or Doulton Products) Cannot Be Used In Conjunction With Other Promos Or Discounts at Discount Filter Store

More Discount Filter Store Products

CMB-510-HF Viqua Sediment Whole House Filter

The CMB-510-HF Viqua whole house filter is ideal for most 10 x 4.5-inch filter housings including the Viqua IHS12-D4 water disinfection system. 100% Melt-Blown Polypropylene filter media reduces dirt, sediment, and rust down to 5 micron to improve the overall quality of your drinking water. This filter will need to be replaced every 3 to 4 months and is surfactant free, binder free, and adhesive free. Order the CMB-510-HF Viqua whole house filter today!

USD 25.09

American Hydro Systems RR1-2.5 Rid O' Rust 2X Concentrate Rust Preventer (2.5 Gallon Container)

"The American Hydro Systems RR1-2.5 is the 2.5 gallon container size option of the RR1 Rid O' Rust 2X Concentrate Rust Preventer. The RR1 is formulated to be twice as strong as the original and is made for use in American Hydro feeder systems. Once added in your system, the preventer works to neutralize the iron in the well water to stave off costly rust stains from forming on your property from fences to sidewalks to more. The RR1 should be used in place of Formula 500 and Formula 2000 and is made for use with any hardness of well water with pH 6 or greater. With this 2.5-gallon container you will get 625,000 gallons of treated well water with 1 ppm iron. Professional grade and safe for people, plants, and pets when used as directed. Order today!"

USD 105.45

600GPD Tankless Undersink RO System by USWF

"This 600 gallon per day tankless RO system by USWF provides on demand reverse osmosis filtration in a compact space saving profile with an impressive 2:1 pure to drain ratio meaning it produces 8 times less waste water than a conventional RO. The system comes with an LED smart faucet and performs intelligent monitoring to notify when a filter change is required, and the quick change filters can easily be swapped out in 3 seconds with a simple twist and pull. This system is easy to install and maintain while being packed with features like automatic membrane flushing and a leak free integrated internal waterway. The RO-2F-600 is the next generation of reverse osmosis filtration system, order yours today!"

USD 253.59

WFCB / WF1CB Frigidaire Comparable Water Filter Replacement By Tier1

The WFCB and WF1CB Frigidaire comparable refrigerator water filter replacement model, Tier1 RWF1030, fits the same models as the Frigidaire WFCB and WF1CB. For up to six months, this filter will reduce up to 99% of lead, cysts and more before these contaminants make their way into your water. Continue to serve only the best tasting water for the best price! Order this refrigerator water filter, comparable to the WFCB and WF1CB by Frigidaire, today.

USD 6.27

10% off

97 uses

high

worked about 1 month ago

10% Off Select Items at Discount Filter Store

10% off

193 uses

high

worked about 1 month ago

10% Off Uswf Pfas at Discount Filter Store

10% off

168 uses

high

worked about 1 month ago

10% Off Storewide at Discount Filter Store

Free Shipping

483 uses

high

worked about 1 month ago

Free Shipping Storewide (Must Order Not Applicable To Hm Digital Or Doulton Products Or Proproducts 2404) Cannot Be Used In Conjunction With Other Promos Or Discounts at Discount Filter Store

Sustainability Score

45%

While the company sells products that promote clean water and air, their corporate sustainability practices lack transparency. Limited information is available about their supply chain, manufacturing processes, and labor conditions. They have basic recycling programs but no comprehensive environmental strategy. The company has not published sustainability reports or clear ESG commitments. Some positive initiatives include eco-friendly packaging and a filter recycling program, but overall environmental impact remains unclear.

About Discount Filter Store

4.0 (2)

FAQs

: Our biggest sales occur during Black Friday/Cyber Monday, Memorial Day, and Labor Day weekends. We also run special promotions during Earth Day in April.
: Yes, we offer tiered discounts starting at 5% off for orders of 3+ filters, 10% off for 6+ filters, and 15% off for orders of 10+ filters.
: Yes, subscribers to our newsletter receive a 10% off coupon for their first purchase and exclusive access to flash sales and seasonal promotions.
: The best times to buy are during our seasonal sales (Black Friday and holiday season) or during the off-season (January-February) when we often clear inventory with special deals.
: In the past month, Discount Filter Store has launched 5 new promo coupons for shopper discounts. This indicates that Discount Filter Store provides regular opportunities for customers to save money on their purchases.
: On average, Discount Filter Store provides 4 discount coupons each month. Based on historical data, the average time between Discount Filter Store coupon releases every 8 days. However, this rate depends on various factors such as seasonal promotions (Black Friday, Cyber Monday, etc.), product launches, or other marketing initiatives. To stay informed about upcoming discounts and promotions, we recommend checking Discount Filter Store website regularly, subscribing to email newsletters, and following them on social media.
: Discount Filter Store is offering 12 working store-wide codes, however they are also offering 117 additional discount codes with a best discount of 50% off
: terra.coupons is the #1 provider of discount codes for your favorite retailers, such as Discount Filter Store. As a crowd-sourced platform for coupon codes, we accurate codes for over 10,000 stores. Save time and avoid expired codes by checking terra.coupons for the latest Discount Filter Store discount codes.

Curated by

Aleksa P.

Deal Curator

Last updated September 2025

Aleksa is a deal finder from the tech-savvy city of Austin, Texas. A keen coder by day and a discount guru by night, Aleksa checks back regularly to update you with new deals.

Latest Discount Filter Store coupon activity

Track real-time Discount Filter Store coupon activity from our community. See which codes are working right now at Discount Filter Store, when they were last verified, and any usage restrictions. Our feed helps you quickly find active codes and avoid expired ones.

From the blog

2025-04-29

Discount Filter Store Promo Codes and Coupons September 2025