In high-use environments, water filters do more than just improve taste - they help protect equipment, support health standards, and ensure consistent performance. Elkay filters are a key component of many bottle filling stations and drinking fountains, but keeping them maintained isn’t always straightforward. From knowing when to replace them to choosing the right model, small oversights can lead to bigger issues down the line.

At Berl’s Commercial Supply, we stock certified Elkay replacement filters and help teams get the right match for their equipment. Here’s what to know about how long Elkay filters last, how to reset their status, and which model to choose.

How Long Do Elkay Filters Last?

How long filters last depends on the model and the gallon capacity. The most common Elkay water filter, the 51300C, is rated for up to 3,000 gallons, which typically translates to around 19,200 20-ounce bottles, or six months of use in a standard commercial setting.  That number can vary based on how much traffic your unit sees and the quality of the incoming water. Heavy usage or sediment-heavy supply lines can wear out a filter faster than expected. 

To avoid dips in water quality or pressure, it’s smart to track usage and plan for routine filter checks. Elkay units with LED status indicators make this easier, signaling when it's time for a replacement. If you manage multiple stations, consider logging filter changes and setting up reminders to stay ahead of maintenance cycles.

How to Reset Elkay Filter Status Indicator

On newer models, the filter status indicator will automatically reset after correctly installing a new filter. On older models, the LED status light on your Elkay unit needs to be manually reset. Otherwise, it will continue to show a “Replace Filter” warning even with a new cartridge in place.

Here’s how to reset the indicator on most Elkay bottle filling stations:

1.Remove the top cover of the bottle filter by unscrewing the 2 screws and lifting off the cover.

2.Locate the program button at the top right. 

3.Hold the button for approximately 2 seconds until the display changes, then let go.

4.The display will scroll repeatedly through 2 messages. When it is on “reset filter,” press the button again once.

5.When the filter status LED goes green, the filter status has been reset.

If the light doesn’t reset, double-check that the new filter is seated properly and that the unit has power. Some models may require slightly different steps, so it’s worth consulting your unit’s manual for exact instructions.

For video instructions on how to reset the filter status, view our Changing the filter in an Elkay or Halsey Taylor Drinking Fountain video.

Does the Elkay Filter Remove Fluoride?

Standard Elkay filters, including the popular 51300C model, are not designed to remove fluoride. These filters are NSF-certified to reduce chlorine taste and odor, lead, and select particulates, helping facilities meet basic water quality and safety standards.

If fluoride removal is a priority, additional filtration may be needed. That could mean installing a reverse osmosis system upstream or using specialized filters designed for fluoride reduction. Elkay’s built-in filtration systems are effective for general use, but they don’t target all contaminants - and understanding those limitations is key when planning water safety protocols.

IMPORTANT NOTE: Elkay and Halsey Taylor products are not designed for use with reverse osmosis. Doing so will degrade the internal components of them and void all warranties.

Choosing the Right Elkay Filter

Not all Elkay filters fit every unit, so matching the right model is essential for proper performance. The most widely used replacement is the Elkay 51300C, which fits many of the brand’s bottle filling stations and is certified for lead and chlorine reduction.

To find the correct filter for your unit, check the model number of the fixture itself - usually found behind the access panel or in product documentation. Once identified, match it to the compatible filter listed in the chart below or consult with our team at Berl’s for guidance.

Using off-brand or incorrect filters can void warranties and lead to flow issues or false status readings. Berl’s only supplies certified Elkay filters, ensuring compliance and compatibility across all major Elkay hydration units.

Our Elkay & Halsey Taylor compatibility chart can help you determine which filter you need.

Filter Maintenance Best Practices

Regular filter changes do more than maintain water quality; they protect the entire system from strain and premature wear. In high-use buildings, waiting for the indicator light to turn red isn’t always the best move. Set a schedule based on usage estimates and inspect units quarterly to stay ahead of potential issues.

Keep a few spare filters on hand to minimize downtime during replacement, especially in schools, hospitals, or other critical facilities. When changing filters, always confirm that the replacement is fully seated and that the LED indicator is reset correctly.

Conclusion

Elkay filters are a small part of your facility’s infrastructure, but they carry real weight when it comes to performance and compliance. Knowing how long they last, how to reset the system, and which model to use helps prevent interruptions and keeps your hydration stations operating reliably.

Berl’s Commercial Supply carries genuine Elkay replacement filters and supports facility teams with product expertise and fast, reliable fulfillment. Need help finding the right fit? Our team’s here to make it simple.