15%OFF
15% Off Tier1 & Tier1 Plus Fridge Filters
See DetailsExpires 1/22/2025
TIER15
WaterFilters.net Coupons & Promo Codes
Verified WaterFilters.net Promo Codes & Coupons
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10%OFF
10% Off First Order
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5%OFF
5% Off Auto Ship Orders
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FREE
Free Shipping w/ $99+
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$5.99 Flat Rate Shipping
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Unverified Promo Codes
These WaterFilters.net discount codes are marked as expired in our system, but it's really common for coupons to work beyond their advertised expiation date. So we certainly can't guarantee that these codes work, but they very well might!
10%OFF
10% Off Sitewide
Celebrate with a special 10% discount on your entire purchase! Use code SAVE10 at checkout to receive your discount.
SAVE10
10%OFF
10% Off Any Brand Fridge Filters
Get 10% off any brand of refrigerator filters. Use code FRIDGE10 at checkout to redeem this offer.
FRIDGE10
20%OFF
20% Off Whole House Cartridges
Save 20% on whole house water filter cartridges for your home. This offer is available for a limited time. Get crystal-clear water throughout your entire house at an affordable price. Check out the large variety of whole house cartridges to find the right one for your needs.
WHCART20
15%OFF
15% Off Fridge Filters
Click through and tap 'copy & go' to score 15% off fridge filters at WaterFilters.net. Code valid now through January 5th.
FRESHSTART15
FREE
Free Shipping - No Minimum
Shop online and save throughout the site at WaterFilters.net with this promotion code when you check out. Valid now through December 29th.
HOLIDAYSHIP
15%OFF
15% Off Sitewide
Shop online and save throughout the site at WaterFilters.net with this code when you check out. Valid now through December 22nd.
HOLIDAY15
20%OFF
20% Off All Tier1 Filters
Save 20% off all tier1 filters when you enter this WaterFilters.net coupon during checkout. Valid now through December 15th.
TIER1HOLIDAY
10%OFF
10% Off Sitewide
Shop online and save storewide at WaterFilters.net with this code when you check out. Valid through December 15th.
HOLIDAYPREP
15%OFF
15% Off USWF Products
Good through November 17th. Redeem 15% off uswf products when you use this coupon code at checkout.
VETERANS15
25%OFF
25% Off Pool & Spa Filters
Valid through September 30th. Receive 25% off pool & spa filters when you use this WaterFilters.net promotional code at checkout.
FLASH25
15%OFF
15% Off All Fridge Filters
Click through and tap 'copy & go' to redeem 15% off all fridge filters at WaterFilters.net. Promotional code valid now through today.
ALLFRIDGE15
15%OFF
15% Off Berkey Systems + Free Shipping
Get 15% off berkey systems + free shipping when you enter this WaterFilters.net promotion code during checkout. Expires today.
BERKEY15SHIP
15%OFF
15% Off Furnace Filters + Free Shipping
Valid now through October 7th. Receive 15% off furnace filters + free shipping when you use this WaterFilters.net discount code at checkout.
FURNACE15SHIP
15%OFF
15% Off Humidifier Filters + Free Shipping
Shop online and save at WaterFilters.net with this code when you check out. Good through October 7th.
HUMID15SHIP
5%OFF
5% Off Sitewide + Free Shipping
Shop online and save storewide at WaterFilters.net with this promotional code when you check out. Expires October 4th.
SAVE5SHIP
10%OFF
10% Off All Water Filters
Shop online and save throughout the site at WaterFilters.net with this promo code when you check out. Valid now through today.
WATER10SHIP
20%OFF
20% Off All Fridge Filters
Shop online and save throughout the site at WaterFilters.net with this discount code when you check out. Valid now through September 26th.
ALLFRIDGE20
22%OFF
22% Off Humidifier & Furnace Filters
Ending September 24th. Receive 22% off humidifier & furnace filters when you use this code at checkout.
FALL22
Buy 3 Get 1 Free Tier1 Fridge Filters
Score buy 3 get 1 free tier1 fridge filters storewide when you enter this code during checkout. Valid now through September 21st.
FRIDGE4FOR3
15%OFF
15% Off Furnace Filters
Click through and tap 'copy & go' to redeem 15% off furnace filters at WaterFilters.net. Promotion code valid through today.
FURNACE15
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