Discount Filters Promo Codes and Coupons September 2025

Discount Filters

DiscountFilters.com is an online retailer specializing in water filters, air filters, and related accessories for residential and commercial use. They offer a wide selection of replacement filters for major brands at competitive prices, with a focus on providing affordable alternatives to OEM filters while maintaining quality standards.

discountfilters.com

Today's Discount Filters discount codes

TOP PICK

15% off

13 uses

high

worked 3 months ago

Save 15% off with code

20% off

5 uses

high

worked 3 months ago

Take 20% off with coupon code

20% off

3 uses

high

worked 2 months ago

20% Off Storewide at Discount Filters

20% off

13 uses

high

worked about 2 months ago

20% Off Storewide at Discount Filters

Featured Discount Filters Products

16x24x1 AIRx ALLERGY Air Filter, 6-Pack

If you want to promote superior air quality in your home, this is the air filter for you! The specialized media in the filter attracts and captures small particles that can cause allergies. We carry your size of air conditioner filter or furnace filter. We offer convenient online ordering and quick shipping right to your door! Pleated media provides extended surface area for filtration, and low resistance to airflow MERV 11 rating means the filter attracts household allergens like dust, pollen, mold spores, dander, smoke and smog Replace every 90 days under normal use Made with pride in the USA 100% free returns on all filters

USD 24.51

15x20x1 AIRx DUST Air Filter - MERV 8, 6-Pack

If you want to protect your HVAC system, keep your house a little cleaner, and remove a few nuisance particles from the air you breathe then yes, this is the filter for you! Not everyone needs to get rid of odors, and not everyone is overly sensitive to allergens and other, more harmful, particulates in their air. We make shopping for air conditioner filters and furnace filters easy! Entry-level pleated air filter offers improved filtration over common fiberglass filters MERV 8 rating means the filter attracts common large household allergens like dust, pollen, and mold spores Replace every 90 days under normal use Made with pride in the USA 100% free returns on all filters

USD 44.46

ClearChoice Replacement filter for Rainbow RTL-75/ Pentair Dynamic 75 / Custom Molded Products 25390, 4-pack

Replacement Pool & Spa Filter for Filbur FC-2395 If you are looking for a quality, product to clean the water in your pool - this is the filter for you! We make shopping for filters easy, and we'll deliver the filter directly to your front door. Industry standard 3oz layered meltblown Spunbond Poly Filter media Quality construction - Made to OEM Specifications High impact end caps 75 Square Feet of Media

USD 33.98

ClearChoice Replacement filter for American Predator 100 / Pentair Clean & Clear 100

Replacement filter for American Predator 100 / Pentair Clean & Clear 100 If you are looking for a quality, product to clean the water in your pool - this is the filter for you! We make shopping for filters easy, and we'll deliver the filter directly to your front door. Industry standard 4oz layered meltblown Spunbond Poly Filter media Quality construction - Made to OEM Specifications High impact end caps 100 Square Feet of Media

USD 59.60

What Discount Filters coupons are available today?

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119

Discount Filters deals available today

Active Discount Filters codes

15% off

Biggest discount available

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Exclusive single-use codes shared by our community (119 active codes).
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Note: Our community tests every Discount Filters 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.

35% off

23 uses

high

worked 2 months ago

35% Off Storewide at Discount Filters

20% off

38 uses

high

worked about 2 months ago

20% Off Storewide at Discount Filters

20% off

762 uses

high

worked 5 months ago

20% Off Your Purchase

10% off

576 uses

high

worked 5 months ago

Coupon Code for 10% Off Your Order

More Discount Filters Products

FilterLOCK Furnace and Air Conditioning Filter Seal

FilterLOCK Furnace and Air Conditioning Filter Slot Seal Your furnace or air conditioning system may be sucking in deadly gases (carbon monoxide, radon, etc.) as well as dangerous chemicals, allergens, and pet dander. The Department of Energy Says - "Cover/seal furnace filter slot to eliminate air leaks." The FilterLOCK is placed over the filter slot (or any seams in metal ductwork) to eliminate the entry of unfiltered air into your forced air system. Millions of homes have open filter slots needing FilterLock to seal, save energy, and improve indoor air quality. FEATURES: Year round savings and protection Blocks allergens and pollutants One-size-fits-all standard air filters - comes with two seal pieces that overlap Easy-on / easy-off (reusable) Magnetically attaches to metal duct Saves energy - reduces utility bills Dimensions - 4-3/4" Wide - Covers slots up to 25" Long

USD 19.95

Doulton 10" Ceramic Ultracarb Water Filter Cartridge - W9223021, 4-Pack

Doulton 10" Ceramic Water Filter Cartridge - W9223021 Doulton M15 Ultracarb ceramic candle for Franke filter housings with double slim "O" rings and 15mm metric M15 threaded mount. This 10" cartridge provides impressive containment reduction through its high porosity ceramic candle design that removes lead, bacteria, pesticides, and improves water taste and odor. How often you replace the filter will depend on quality of water in your local area and filtration needs. FEATURES: Ultracarb includes outer ceramic shell as well as inner activated carbon layer Ultracarb has all the benefits of Sterasyl (removal of particles, pathogenic bacteria, cysts etc.) with additional chlorine, organics and lead removal capabilities. OEM, factory-origion product from Doulton Fits Doulton, Franke, Uniflow and Triflow housings 10" filter with M15 threaded mount Silver impregnated to inhibit microbiological growth Retains essential minerals Proven protection agains water-borne disease Long life filter can be cleaned and re-used SPECIFICATIONS: Capacity: 2,300 liters / 600 Gallons Flow Rate: .9 GPM Filtration Rating: Nominal (defined as >99.9%) - .5-.8 micron

USD 48.95

Whirlpool EDR2RXD1 Refrigerator Water Filter (Filter2), 3-Pack

The factory original Whirlpool EveryDrop EDR2RXD1 (AKA FILTER 2) takes over for the W10413645A filter and is used in refrigerators by Whirlpool, KitchenAid, Maytag, Amana, Jenn-Air, Kenmore and others. The Whirlpool EDR2RXD1 filter creates better tasting water for drinking and making beverages as well as clean, clearer, healthy ice. Features: Original OEM product Easy installation and operation Helps reduce chlorine taste and odor Helps reduce contaminants found in tap water and improves its quality Tested by NSF International against Standard 42 for the reduction of chlorine taste and odor and particulate Tested by NSF International against Standard 53 for the reduction of lead, cysts, turbidity and other chemicals and impurities Replaces the popular W10413645A

USD 76.95

ClearChoice Replacement for Samsung HAF-QIN/EXP (DA97-17376B), 2-Pack

The ClearChoice CLCH131 filter replaces Samsung part number DA97-17376B, or HAF-QIN. It is used in French Door and Side-by-Side refrigerators by Samsung and others. The CLCH131 filter creates better tasting water for drinking and making beverages as well as clean, clearer, healthy ice. Features: Inexpensive alternative to OEM product Easy installation and operation Replaces PART # DA97-17376B / MODEL # HAF-QIN/EXP / FOR USE IN SYSTEM # DA97-08006C Helps reduce chlorine taste and odor Helps reduce contaminants found in tap water and improves its quality Made with pride in the USA Samsung is a registered trademark of Samsung Electronics Co., LTD. National Trade Supply, Inc, and DiscountFilters.com are not affiliated with Samsung. This is not a Samsung OEM product and is not covered under any Samsung manufacturer's warranty. Any use of the Samsung brand name or model designation for this product is made solely for purposes of demonstrating compatibility.

USD 14.95

30% off

376 uses

high

worked 5 months ago

Get 30% off with coupon code

25% off

70 uses

high

worked about 2 months ago

25% Off Storewide (minimum Order $50) at Discount Filters

20% off

0 uses

high

worked about 2 months ago

20% Off Storewide at Discount Filters

25% off

54 uses

high

worked about 2 months ago

25% Off Storewide at Discount Filters

Sustainability Score

62%

While the company offers products that promote water conservation and air quality, their corporate sustainability practices show room for improvement. They provide limited transparency about their supply chain and manufacturing processes. Their recycling program for used filters is commendable, but packaging could be more eco-friendly. Labor practices and worker conditions in manufacturing facilities lack detailed public documentation. The company has made some progress in reducing their carbon footprint but falls short of industry leaders in environmental commitments.

About Discount Filters

3.0 (3)

FAQs

: The best sales typically occur during Black Friday/Cyber Monday, Memorial Day, and Labor Day weekends. They also run special promotions during Earth Day in April.
: Yes, customers can save up to 15% on bulk orders of 3 or more filters. Additional discounts are available for commercial accounts.
: New subscribers to their email newsletter receive a 10% off coupon for their first purchase.
: Yes, they offer price matching on identical items from authorized retailers within 30 days of purchase.
: In the past month, Discount Filters has launched 0 new promo coupons for shopper discounts. This indicates that Discount Filters does not provide regular opportunities for customers to save money on their purchases.
: On average, Discount Filters provides 2.5 discount coupons each month. Based on historical data, the average time between Discount Filters coupon releases every 12 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 Filters website regularly, subscribing to email newsletters, and following them on social media.
: Discount Filters is offering 12 working store-wide codes, however they are also offering 107 additional discount codes with a best discount of 15% off
: terra.coupons is the #1 provider of discount codes for your favorite retailers, such as Discount Filters. 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 Filters discount codes.

Curated by

Linda S.

Content Writer

Last updated September 2025

This page was curated by Linda, a savings and discount enthusiast from sunny Sarasota, Florida. With a keen eye for unbeatable deals, Linda ensures that all codes are checked and curated daily. She's also a certified yoga instructor who loves to share wellness tips. Check back tomorrow for more savings and perhaps a little zen!

Latest Discount Filters coupon activity

Track real-time Discount Filters coupon activity from our community. See which codes are working right now at Discount Filters, 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 Filters Promo Codes and Coupons September 2025