In commercial buildings, water quality isn’t just a health issue; it’s a reputation issue. Whether you're managing hydration stations across a campus or outfitting fixtures in a new facility, what comes out of the tap is vital to the health and reputation of your organization.  

While most municipal systems meet federal guidelines, they don’t always filter out everything that matters. From residual lead to emerging contaminants like PFAS and microplastics, commercial facilities are facing increased pressure to go beyond code.

That’s where Elkay’s Pro Filtration line comes in. Built for performance and reliability, these point-of-use filters are engineered to reduce a broader range of contaminants, helping contractors, building managers, and procurement teams protect water quality without overcomplicating maintenance or installation.

What Makes the Elkay Pro Filtration Line Different

Elkay’s Pro Filtration line is designed specifically for commercial environments, where uptime, consistency, and water quality standards matter. These filters go beyond basic chlorine and taste reduction, offering targeted contaminant control for facilities that require more than the minimum.

Each filter in the lineup is built with high-performance carbon block media and a 0.5-micron rating to capture fine particulates. Select models also reduce total PFAS, microplastics, cysts, and lead—contaminants that standard filters often miss. Every filter is independently tested and certified to NSF/ANSI standards, so building teams know exactly what each one is engineered to remove.

Elkay Pro Filtration Comparison

When selecting a commercial water filter, the right choice depends on what you need to remove and how much demand the system sees on a daily basis. The Elkay Pro Filtration line makes it easy to match filter performance to real-world conditions, with consistent installation and maintenance requirements across the line.

Below is a quick comparison to help evaluate which filter fits your facility best:

All models share a universal ¼-turn installation connection, keeping installation straightforward and filter swaps consistent across different units.

Filter-by-Filter Breakdown

Each Elkay Pro filter is engineered for specific needs. Here’s a closer look at how they compare in function, capacity, and ideal placement within a facility.

Note that this special line of Elkay filters are designed only to be used with the Pro Filtration Bottle Filling Station line.  (See below for more info.)  The Pro Filtration bottle filters take two filters in each unit.  One filter is specifically the FSR5 pre-filter.  Then, you can choose from one of the other three options below, the FLP4, FLP6 or FLP10.  The standard choice is the FLP4, which filters out the most contaminants and therefore also has the smallest capacity.

FLP4: Total PFAS + Lead + Microplastics Filter

The FLP4 offers the most advanced contaminant reduction in the Elkay Pro lineup, making it the go-to option for facilities facing stricter water quality demands.

• What it targets: Total PFAS (including PFOA and PFOS), lead, and microplastics.  
• Best for: Schools, healthcare facilities, airports, and municipal buildings near industrial zones or known PFAS contamination areas
• Why choose it: Adds PFAS reduction without changing the footprint or installation process, ideal for high-sensitivity environments where regulation or liability is a factor

FL6: High-Capacity Lead + Microplastics Filter

The FL6 balances contaminant control with longer life. It’s a strong fit for facilities that don’t require PFAS reduction but still need dependable, certified protection for lead and microplastics.

• What it targets: Lead and microplastics
• Best for: Offices, commercial buildings, and schools with moderate water use
• Why choose it: Provides a 6,000-gallon capacity, 50% more than FLP4, with the same 0.5-micron precision and quick-change installation

FL10: Ultra-Capacity Lead + Microplastics Filter

With double the capacity of FLP4 and nearly double that of FL6, the FL10 is built for heavy use and minimal downtime.

• What it targets: Lead and microplastics
• Best for: Stadiums, transit centers, corporate campuses, and any site where high-volume water access is non-negotiable
• Why choose it: Longer service life between replacements reduces labor and downtime for large-scale facilities

FSR5: Stage 1 Sediment Prefilter

The FSR5 isn’t a standalone solution, it’s a first line of defense designed to protect primary filters from premature clogging due to sediment and particulate buildup.  There is a location for this prefilter in every Pro Filtration Bottling Filling Station, and it must be installed to enable the other micro-plastic filter to work properly.  

• What it targets: Sediment and physical particulates
• Best for: Buildings with older plumbing, rural supply lines, or during construction activity
• Why choose it: Helps extend the life of FLP4, FL6, or FL10 filters and reduces service frequency by preventing upstream buildup.  And because you must.

Selecting the Right Filter for Your Facility

Choosing the right filter starts with understanding the demands of your space.  If you don’t feel the need to worry about PFAS and microplastics, then go with one of the standard Elkay filtration systems, which already filter out lead, chlorine and other contaminants. If you do need to eliminate the microplastics from your system, then go with a Pro Filtration line.  When you do, you will need to include the FSR5 prefilter, and then choose from one of the following microplastic filters for your system:  

Match Capacity to Usage

• FLP4: 4,000 gallons 
  • Ideal for lower-traffic fixtures in sensitive environments. It’s the only filter in the lineup certified to reduce PFAS, making it the right fit for areas near manufacturing zones, airports, or regions with known contamination.
• FL6: 6,000 gallons
  • Filters out microplastics and suits mid-size offices, public buildings, and common areas.
• FLP10: 10,000 gallons
  • Filters out microplastics and is built for large campuses, high-volume corridors, and extended service intervals.

Plan for Maintenance

All filters are rated for up to one year of use, but in high-traffic facilities, capacity may be reached sooner. Establishing a usage-based replacement schedule helps avoid service interruptions and ensures you’re maintaining full contaminant reduction performance.

If you’re managing multiple facilities or planning upgrades, standardizing across the Pro line can simplify inventory, training, and maintenance planning, especially with consistent ¼-turn installation across all models.

Elkay Pro Filtration Bottle Filling Stations

The Elkay Pro filters are specifically designed to work with Elkay’s Pro Series bottle filling stations, which combine high-efficiency hydration with advanced contaminant reduction, all in a single, ADA-compliant unit.  When replacing filters for these units, you must select one of the Pro Filtration filters listed above.  The standard Elkay filters will not work.  

These stations are equipped with factory-installed Pro filters (FLP4) and are available in both bi-level and single-unit configurations, depending on your space and user needs.

Designed for High-Traffic, Public-Facing Use

• LZS8WSBPRO-FLP4 (Single Station): A compact, ADA-compliant design that delivers chilled, filtered water with hands-free activation, ideal for offices, schools, and waiting areas.
• LZSTL8WSBPRO-FLP4 (Bi-Level): Dual-height fountains for accessibility and efficiency, perfect for education, healthcare, or municipal facilities with diverse foot traffic.

Both models feature:

• Integrated FLP4 filters for lead, microplastics, and PFAS reduction
• Real-time filter status monitors
• Durable, stainless-steel construction
• Energy-efficient refrigeration

One System, Full Compliance

Installing Elkay Pro bottle filling stations ensures you’re using the filters as intended, maximizing contaminant reduction while maintaining product certification and warranty coverage. These all-in-one systems offer a smart upgrade path for facilities modernizing older fountains or building to newer wellness and safety standards.

Why Choose Elkay Pro Filtration Through Berl’s

Specifying the right filter is only part of the job; getting the right product, on time, from a trusted supplier is just as critical. Berl’s Commercial Supply is a stocking distributor of genuine Elkay Pro Filtration products, including the full line of FLP4, FL6, FL10, and FSR5 filters, as well as compatible Elkay Pro bottle filling stations.

When you source through Berl’s, you get:

• Verified product authenticity to protect your warranty and ensure performance
• Fast, reliable shipping for scheduled installs or emergency replacements
• Responsive support from a team that understands your equipment and your deadlines

Whether you're upgrading a single fountain or rolling out filtration across multiple buildings, Berl’s makes it easy to get the right filters, backed by commercial expertise and service that keeps projects on track.

Definitions:

PFAS in water stands for Per- and Polyfluoroalkyl Substances.

These are a large group of man-made chemicals used since the 1940s in products like nonstick cookware, waterproof fabrics, firefighting foams, and industrial processes. They’re often called “forever chemicals” because they break down extremely slowly and can accumulate in the environment and the human body.

PFOA stands for Perfluorooctanoic acid — an 8-carbon fully fluorinated compound used historically in making Teflon and other nonstick or heat-resistant products.

PFOS is Perfluorooctanesulfonic acid — also an 8-carbon fully fluorinated compound, widely used in stain-resistant coatings and firefighting foams (AFFF).

Both are part of the larger PFAS family.