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Water Filter System & Replacement Filter Cartridge Experts

The WaterFilters.NET Water Filter superstore stocks hundreds of thousands of water filtration systems and replacement cartridges, and we have shipped millions of water filters since our launch in 2002. As an Inc 500 company, we are able to bring a broad selection of the top water filter brands, including GE, Culligan, Pentek, Everpure, Whirlpool, Pur, Brita, Omnipure, Hydronix, and more. We have a team of water filter experts as a result of our Certified Water Specialist training, and they will help you find the water filter system or replacement you need, whether it is a refrigerator filter, a whole house filter, a faucet filter, a shower filter, an inline filter, a camping filter, a reverse osmosis system, or any other type of water treatment system.

WaterFilters.NET can fill all your water treatment needs. Our goal is to make a site that makes it quick and easy for you to find the right drinking water filter system or replacement water filter cartridges. We have whole house water filters, under sink water filters, countertop water filters, faucet mount filters, water pitchers, shower filters, sport water bottles, water test kits, reverse osmosis systems, filtered water bottles, RV water filters, and more. We also supply many commercial filters. We take pride in being able to deliver the water filters you need. We have many authentic Culligan water filters and Pentek water filters.

Our water filtration products reduce the presence of sediment and chlorine taste and odor. Some of our products reduce the presence of contaminants such as mercury, lead, nitrates, herbicides, pesticides, giardia, cryptosporidium, and asbestos. If you are not sure what is wrong with your water, you may want to try a water test kit. The test kits will tell you which contaminants are in your water.

Many of the industry's water filter systems are made by a handful of manufacturers. For example, many interchangeable cartridges are available from Culligan, Ametek, Pentek, American Plumber, and USFilter brands. Other companies buy these water filters and put their own "brand names" on the filters even though the water filtration technology may be identical. For this reason, many water filter products are interchangeable. We have identified water filter products that are interchangeable with other brands in our "Search by Brand" pages. We have carefully chosen the highest quality and the most customer friendly water filter products to list on our site. If you cannot find the water filter you are looking for, check out our "How Do I Find My Water Filter?" page.

We hope you find the water filters you need. If there is anything we can do to help, please let us know.



When John isn't dreaming about water filters, he enjoys cooking and watching his beloved Vikings.

- John S.


"The filter is installed and works perfectly. Again, my father is happy that it is installed and working. Thank you for your professional assistance and patience."

- Frank from Dillon Vale, OH.