Skip to content
Enjoy fast and free shipping on all orders over $89! Contact us (855) 424-4376
Enjoy fast and free shipping on all orders over $89! Contact us (855) 424-4376
EWS - Essential RO3 Filter Set

EWS - Essential RO3 Filter Set

by EWS
$ 426.75 - $ 509.25
$ 426.75 - $ 509.25
$ 426.75 - $ 509.25
$ 426.75 - $ 509.25
$ 426.75
Choose a Model
 More payment options

RO3 Filter Replacement Set (F.SET.RO3)

  • Three stages of advanced carbon filtration and high-capacity reverse osmosis membrane.
  • Any individual or family seeking the convenience and health of filtered water at the kitchen sink (or any sink).
  • City water or well water*.

True Protection From Toxic Contaminants.

World-class EWS water filtration and performance for the removal of chlorine, chloramine, pesticides, THMs, VOCs, obesogens, lead, cysts, rust, silt, sediment, heavy metals, fluoride, and much more. The ESSENTIAL RO offers real protection against dangerous contaminants, while meeting your individual preferences for taste and mineral removal.

Made in the USA. Maintenance-free for up to 1 year before filter replacement. Just change them out and go!

Our Standards. Manufactured and Assembled in the USA.

All product and components are compliant for food and beverage contact and comply, meet or exceed all current and applicable standards without exception.

All EWS product has been independently tested by an accredited third-party laboratory to meet and/or exceed all relevant FDA, California State regulations, and NSF standards for all claims made regarding NSF/ANSI standards. All EWS product is No-Lead Compliant to California AB1953.

 




Over the years, a select few products have risen above the rest with their unparalleled performance. We're thrilled to share these gems with you. Whenever you spot the "From the Frog" badge, rest assured it's more than just a mark of quality—it's a symbol of our dedication and careful consideration in choosing the best for you. 

Blog posts

  • Optimizing Sprinkler Spacing: Achieve Perfect Lawn Coverage and Water Efficiency
    June 10, 2025

    Optimizing Sprinkler Spacing: Achieve Perfect Lawn Coverage and Water Efficiency

    At Big Frog Supply, we know a lush, green lawn starts with a well-designed irrigation system. If your sprinkler setup leaves you with stubborn brown patches or soggy, oversaturated zones, improper spacing might be the culprit. This updated guide simplifies sprinkler spacing, breaking down essential techniques, common pitfalls, and effective solutions. Learn how to optimize your sprinkler design for uniform watering, conserve water, and keep your landscape thriving year-round.

    Read now
See more

Compare products

0 of 3 items selected

Select first item to compare

Select second item to compare

Select third item to compare

Compare