Elkay Water Filters & Treatment Systems

Elkay Water Filters & Treatment Systems: Certified Filtration You Can Trust

When it comes to drinking water filtration, few names carry the credibility of Elkay. With over a century of engineering experience behind their drinking water solutions, Elkay has built a reputation for putting cleaner, safer water within reach — in schools, hospitals, airports, offices, and now homes. Their lineup of water filters and treatment systems is the backbone of that mission, combining rigorously certified filtration technology with practical, low-maintenance designs suited for virtually any environment.

The WaterSentry® Filtration System

At the heart of Elkay's water treatment offerings is the proprietary WaterSentry® filter system. The WaterSentry® filter is a carbon block filter with a polypropylene prefilter that is rated to NSF 42 and 53 for lead, chlorine taste and odor. This dual-standard certification is significant: Elkay filters significantly reduce lead, certified under NSF/ANSI 53, making them ideal for schools and healthcare environments. Beyond lead, Elkay filters reduce lead, chlorine taste and odor, particulates, cysts, pharmaceuticals, and select PFAS chemicals, with some models also reducing microplastics.

The WaterSentry® line covers a range of capacities to match different usage levels. The WaterSentry 51300C filter is rated for 3,000 gallons, while the WaterSentry 51600C filter is rated for 6,000 gallons. Maintenance is kept straightforward: Elkay® filters are easy to connect and are self-contained replaceable cartridges, limiting exposure to contaminated media. They are equipped with quick-disconnect, 1/4-turn installation, as well as an automatic inlet shut-off valve that closes when the filter is removed.

Elkay Pro Filtration™: The Next Generation

For high-demand commercial and institutional settings, Elkay has raised the bar with the Elkay Pro Filtration™ line. The Elkay Pro Filtration line is engineered with high-capacity filtration, extended filter life, and simplified maintenance to help facilities address aging water infrastructure efficiently. This enhanced filtration system uses new Elkay Pro Filtration™ filters, featuring high capacities of up to 10,000 gallons and advanced contaminant reduction — now reducing Total PFAS, lead, microplastics, sediment and more.

Maintenance efficiency is a standout feature of the Pro Filtration line. The new design houses filters at the top of the unit, allowing for filter changes in under 30 seconds, with included ultra-capacity filters providing filtration on up to 10,000 gallons — meaning filter changes are only needed once a year. For facilities managers overseeing multiple units, all Pro Filtration units are compatible with the patented plumbSMART™ system, which supports integration with most modern building automation systems, providing data including filter status, device usage, water consumption, and maintenance alerts across multiple units.

Retrofit Kits: Upgrading Existing Systems

One of Elkay's most practical contributions to the water treatment category is their retrofit filtration approach. Their filters are sold separately and can be retrofitted onto any existing Elkay or non-Elkay branded water cooler, fountain, or bottle filling station with Elkay's vandal-resistant retrofit filtration kit, with kits available with and without a filter status monitor and alert. Specific retrofit kits include the EWF3000, which converts a non-filtered bottle filler into a filtered unit , and the EWF172, which converts a non-filtered cooler or fountain into a filtered unit.

Smart Filter Status Monitoring

Elkay's filtration systems take the guesswork out of maintenance through built-in LED status indicators. A green LED means the filter is working, yellow signals that the filter should be changed, and red indicates the filter has reached end of life and may no longer be effective. Enhanced models take this a step further: enhanced bottle filling stations include FillSafe™ recognition, a feature that detects when a new Elkay filter is installed and automatically resets the filter monitor light from red back to green.

Certifications and Lead-Free Construction

Elkay drinking solutions often carry National Sanitation Foundation (NSF), American National Standards Institute (ANSI), American Disabilities Act (ADA), and Underwriters Laboratories (UL) certifications. Importantly, Elkay's drinking water products have been lead free for more than two decades, and they are certified to NSF/ANSI 372 as lead free by the Water Quality Association. Select Elkay filters are also tested to reduce PFAS compounds like PFOS and PFOA — look for models featuring Elkay Pro Filtration™ or those meeting NSF/ANSI 53 and 401 standards.

Whether you're maintaining an existing hydration station or upgrading to a fully monitored, high-capacity system, Elkay's water filters and treatment systems represent a benchmark in certified, reliable drinking water quality.