25% Off Sitewide
15% Off Sitewide
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20% Off Sitewide
Up to 67% Off Close-Out Products
15% Off Your Order With Discount Filters Email Sign Up
Get 10% Off Everything
20% Off Your First Subscription Order
Extra $5 Off HVAC Air & Fridge Filter
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Free Shipping on Orders Over $50
Extended Return Policy: 1 Year Satisfaction Guaranteed
Discount Filters - Frequently Asked Questions
Does Discount Filters offer a warranty?
Yes. Discount Filters’ Purchase Guarantee allows customers to return unused filters for up to one year with free return shipping.
Can I get a price adjustment if my filter goes on sale?
Yes, you may request a price adjustment if an item goes on sale within 90 days of your purchase. Contact Discount Filters customer service for assistance with your return.
How do I contact Discount Filters customer service?
Email contact@discountfilters.com or call 888-407-5688 to get in touch with Discount Filters’ customer-service team.
How often do I need to change my air filters?
It’s generally best to replace 1-inch fiberglass or polyester air filters monthly, while pleated 1-inch filters can be changed every six weeks.
How do I process a return at Discount Filters?
Visit Discount Filters’ returns page to receive a return authorization prior to returning your filters. Discount Filters’ customer-service team will provide instructions on processing your return.
How Do I Use a Discount Filters Coupon Code?
- Visit the Discount Filters website and add your desired items to the cart.
- Click the shopping cart in the upper-right corner of your screen.
- On the cart page, look for the drop-down box labeled “Apply Discount Code" and click it.
- Enter your Discount Filters promo code in the box, and then click “Apply."
- Make sure your discount has been applied, and then complete your purchase.
Recently Expired Discount Filters Coupons
$10 Off Orders Over $75
$15 Off Orders Over $100
30% Off Sitewide
25% Off Sitewide
15% Off All Orders
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Today's Top Discount Filters Promo Codes
- 25% Off Sitewide
- 15% Off Sitewide
| Total Offers | 11 |
| Coupon Codes | 4 |
| Best Discount | 25% Off |
| Free Shipping Deals | 1 |
| Average Savings | $30.58 |
Best Discount Filters Coupon Codes Available Now
Choose Discount Filters for great prices on air and water filters for every area of your home. Staying on top of filter maintenance helps your home’s efficiency and extends the life of important appliances such as air-conditioning units, refrigerators, and pools. Save on home essentials when you take advantage of Discount Filters’ Subscribe and Save program to get 20% off your first order and earn other subscriber-only benefits.
How to Save at Discount Filters
Sign Up for Email Alerts
Have a 15% discount sent to your inbox after you sign up for Discount Filters’ newsletter.
Free Shipping
Buy more than $50 worth of filters and get them shipped for free within the continental U.S., or get free shipping when you sign up for Discount Filters’ Subscribe and Save service.
Close-Out Buys
Visit Discount Filters’ Close-Out page for last-chance buys on deeply discounted items.
Buy in Bulk to Save
Purchase larger packages of air or water filters to save with every purchase. Extend your standard four-pack or six-pack to 10 or 12 filters to save up to 40% on per-unit costs.
About Discount Filters
The Greenwood, Indiana, company was launched in 2003 by entrepreneur and current CEO Todd Anthony. Anthony began Discount Filters as an arm of National Trade Supply, his existing indoor air quality company. He noticed an absence of good places online to buy filters and decided to try to fill that void. Within weeks of launching Discount Filters online, it dwarfed his original business, selling aftermarket air filters to hundreds of people a day. The company’s filters are made in the U.S. at Anthony’s Indiana factory and warehouse, where he employs more than 100 people.