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10% Off First Order
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WaterFilters.net Coupons & Promo Codes
Verified WaterFilters.net Promo Codes & Coupons
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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!
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
15%OFF
15% Off All Water Filters
Valid through tonight. Get 15% off all water filters sitewide when you use this WaterFilters.net coupon code at checkout.
WATER15
20%OFF
20% Off All Fridge Fridge Filters + Free Shipping
Valid now through tonight. Score 20% off all fridge fridge filters + free shipping when you use this code at checkout.
VIP20FRIDGE
35%OFF
35% Off Tier1 & Tier1 Plus Fridge Filters + Free Shipping
Redeem 35% off tier1 & tier1 plus fridge filters + free shipping when you enter this WaterFilters.net discount code during checkout. Ending today.
TIER35SHIP
20%OFF
20% Off All Humidifier Filters + Free Shipping
Score 20% off all humidifier filters + free shipping when you enter this promotional code during checkout. Expires today.
HUMID20SHIP
5%OFF
5% Off + Free Shipping
Click through and tap 'copy & go' to save 5% off + free shipping sitewide at WaterFilters.net. Promotion code good through tonight.
DEAL5SHIP
11%OFF
11% Off Sitewide
Click through and tap 'copy & go' to receive 11% off storewide at WaterFilters.net. Promo code ends September 5th.
LABORDAY
40%OFF
40% Off Tier1 & Tier1 Plus Fridge Filters
Click through and tap 'copy & go' to redeem 40% off tier1 & tier1 plus fridge filters at WaterFilters.net. Coupon code valid through September 5th.
FRIDGE40
35%OFF
35% Off Tier1 & Tier1 Plus Fridge Filters & Free Shipping
Redeem 35% off tier1 & tier1 plus fridge filters & free shipping when you enter this promotional code during checkout. Valid now through August 26th.
TIER35SHIP
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