Environmental Water Systems F.SET.SS-2.5 Max Flow Filter Replacement

MSRP: $198.00
Price: $148.50
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Environmental Water Systems F.SET.SS-2.5 Essential Max Flow Filter Replacement Cartridge

Drinking Water Filtration Cartridge

  • Hassle free
  • Low maintenance
  • Easy to install
  • Appx. 1 Year filter life*

*Filter service life is based on your local water conditions and usage. Fine sediment, micro-plastics, or certain water conditions may prematurely reduce flow rate and service life due to the filter's advanced ability to capture contaminants and may require more frequent filter replacements.


Environmental Water Systems whole home water filtration appliances are a definitive component of a healthy home and lifestyle. Made by hand in the United States. Meticulously engineered to the highest standards, using the latest technology and highest quality materials. Backed by our award-winning customer service and support. We never skimp. And neither should you.

Since 1987, EWS has pioneered central water filtration and is the leader in quality filtration appliances, trusted by hospitals, health care centers, military, high-end hotels, and thousands of private homes worldwide. Enjoy the hassle-free convenience of clean, filtered water to every sink and shower in your home and reduce your exposure to thousands of unregulated contaminants.


Unparalleled product quality and longevity. Award-winning customer service and expertise. Over 98% customer satisfaction. Top-performing, USA-made filtration is all we do.

The ESSENTIAL Max Flow can be installed at a kitchen sink, wet bar, or bathroom sink. In only 10 minutes you will have delicious, better-than-bottled quality right at your sink, on-demand! Save over $2,000 per year in bottled water costs.

Perfect for any kitchen with a faucet and for those in dorm rooms, apartments, and rental homes.

  • Made in California, USA
  • Enjoy a truly high quality product - no smell, no BPA, no phthalates
  • Just twist-and-click to replace your filter once per year*
  • Easy 10-Minute Install
  • No more buying, lugging, and storing bottled water
  • Enjoy delicious, odor-free water straight from your sink, anytime!
  • No drilling holes for a second faucet

Real Protection from Contaminants. An advanced filtration appliance designed to filter all water throughout your home, providing truly healthy water to every sink and shower. All our filtration appliances utilize the highest quality filtration in order to effectively remove and reduce chlorine, chloramine, VOCs, THMs, pesticides, herbicides, pharmaceutical residues, obesogens, and more. Our filtration appliances are in use worldwide by hospitals, medical centers, health and fitness centers, military, professional athletes, and thousands of personal homes worldwide.

Healthier Home & Lifestyle. All our filtration appliances are designed to prevent you and your family from drinking, absorbing, and inhaling various contaminants and carcinogenic (cancer-causing) chemicals. Enjoy chlorine-free, healthy, filtered water – use your Max Flow for drinking, filling up a pet's water bowl, watering plants, making tea and coffee, or filling up the humidifier with chlorine-free filtered water. Rinsing your organic fruits and veggies in toxic, chemical-free water now keeps them organic instead of absorbing what was in your tap water.

Easy to Install & Self-Maintains. Our Max Flow filter is a hassle-free, user-friendly appliance that only requires a filtration replacement about once per year (based on your local water conditions and usage).

The Highest Quality Possible. We are known throughout the industry for our impeccably high standards, quality materials, and American manufacturing that meets or exceeds all FDA, NSF, ANSI, and California State standards and compliances.

Environmentally-Friendly & Cost-Effective. Our filtration appliances are the environmentally-friendly, maintenance-free choice to filter your water — no toxic chemicals, no corrosive salts, no metal resins, no gimmicks. Replace expensive and wasteful bottled water with healthy, filtered EWS water from your sink. Our parts are recyclable and our proprietary filtration media is completely compostable and biodegradable.


View Product Information Sheet (PDF)

Model #: SS-2.5
Height: 16" (allow 4" clearance in order to replace filters easily)
Diameter: 4"
Weight: 6 lbs.
Flow Rate: up to 2.5 gallons per minute
Filter Capacity: as needed up 1 Year**, not to exceed a year
Filter Replacement #: F.SET.SS-2.5
Exterior Materials: White BPA-free, phthalate-free virgin polypropylene. Recyclable.
Filtration Media: NSF/ANSI and FDA compliant 1 micron activated extruded matrix carbon block.

Do not use with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system. Install in cold water feed applications only (for instance, install before a water heater so hot water does not flow into the appliance). Install in compliance with local and state regulations.

Do not use to filter salt softened water (sodium or potassium chloride).

**Filter service life is based on your local water conditions and usage. Fine sediment, micro-plastics, or certain water conditions may prematurely reduce flow rate and serive life due to the filter's advanced ability to capture contaminants and may require more frequent filter replacements.

SALT SOFTENED WATER WARNING: Do not use for filtering salt (sodium or potssium chloride) softened water. Use EWS reverse osmosis (RO3 or RO4) to remove the salt from the water due to the softener.

WELL WATER WARNING: Not to be installed on well water of unknown quality. Well water is required to have independent, complete and proper testing of your well water to determine the proper course of action in order to specify the correct system(s).


Download Product Warranty


Easy installation. The ESSENTIAL MAX FLOW comes complete and fully assembled with everything you need for a proper installation: connections, white and blue tubing (2.5 ft. each), and mounting bracket. The MAX FLOW does not need a faucet or dispenser – it installs directly to your existing faucet in 10 minutes.

Easy replacement. System maintenance is simple. Replace the filter when needed, up to 1 year. It is a quick process of shutting off the water at your sink, a quick twist-off of the old filter, and a quick twist-in of the new filter.

For Owners

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