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    Stand guard against harmful substances

    Elkay genuine WaterSentry filters make your water cleaner, healthier and better-tasting. Learn more about how our filters work, how to spot counterfeits and how to make sure you have the right filter for your product.

    Elkay WaterSentry Filters

    WaterSentry® means protection

    WaterSentry filters are engineered to meet the high quality standards written by NSF international, and are tested and certified to NSF/ANSI 42 and 53 for the reduction of lead, cysts, chlorine taste and odor and Class I particulates.


    Why does this matter?

    Not every company certifies their water filters, and there are no federal regulations. There are also no federal standards for bottled water. Having third-party testing and certification means you can be assured our filters do what they say they do.

    Plus, inexpensive counterfeit filters don't have a prefilter, so they can clog more easily and have a shorter lifespan. They also don't reset the filter light.

    Identify a Counterfeit Filter

    Identifying a genuine Elkay WaterSentry filter

    Before buying, check online listings for signs of authenticity. When you get your filter, look for Amazon transparency labels and certification symbols. Don't be fooled by inexpensive knockoffs — they may not work right, can void your warranty and might even add harmful contaminants to your water. 

    What's in your water?

    Water from municipal sources may contain cysts, lead, sediment and chlorine. So how do you know what you’re drinking is safe?

    Water filter manufacturers can have their filters tested and certified to nationally recognized standards and protocols that establish minimum requirements for their safety and performance — but this is voluntary. Not all companies choose to do this.

    Elkay does. We invest the time and expense to have our water filters tested and certified by a third-party organization. Our filters are put through rigorous testing to make sure they are structurally sound, won’t leak and won’t leach contaminants into the drinking water. They are also tested to ensure they reduce specific contaminants by a significant amount. You can feel confident knowing that Elkay filters exceed the minimum performance requirements in these standards, filtering out what you don’t want to drink.

    As a trusted name in water delivery for more than 60 years, Elkay filtered drinking solutions provide peace of mind that you are serving or sipping cleaner, healthier water.



    Lead can enter water through corroded plumbing materials. It’s undetectable by taste, sight or smell. In children, lead exposure has been linked to damage to the central and peripheral nervous system, learning disabilities and more. 



    Cysts enter drinking water from human and animal waste, and can lead to gastrointestinal illness such as dysentery, vomiting and cramps.



    Water can be contaminated at the source and as it travels through piping. Many water companies add chlorine as a disinfectant. It can leave an undesirable taste and smell. 

    Sediment and Particulate

    Sediment and Particulate

    Sediment comes from sand, rocks and minerals, or may consist of organic particles of plants and microbes. They can take on a cloudy and unappealing look in water. 

    Filtered Water Makes a Difference

    What’s not in your drinking water is just as important as what’s in it. When you drink from an Elkay filtered bottle filling station, cooler or fountain, healthy hydration is at hand. Here’s a look at what our water filters reduce from incoming water and why it matters to your good health.

    How Often You Should Change Filter

    How often should you change your filter?

    Here's what we recommend: 

    • High traffic areas and airports: every 3 months
    • Large offices and schools: every 6 months
    • Mid-sized offices: every 9 months
    • Small facilities: every 12 months