Everpure OW4 Plus Cartridge EV9635-01

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Applications: Bottle-less coolers & water fountains

This is the larger version of the OW2 Plus water filter cartridge.  If you have the room, this is a cost effective upgrade for double the capacity. NSF certified for cyst and lead reduction.

Keep Your System Working Optimally:

To ensure your Everpure filter cartridge continues to provide the highest quality water throughout the year, we recommend replacing it when water flow appears diminished or when the system’s “rated capacity” is reached.

Please note: this cartridge fits into the QL1, QL2, QL3 and QC4 heads. If you have a ProSeries head, please use the ProSeries 1500/2500/3500 cartridges.


  • Capacity: 2,000 gallons 
  • Flow Rate: 1/2 gallon per minute
  • Micron Rating: 0.50 microns
  • Certifications: NSF/ANSI Standard 42 & 53
  • Cartridge Size: 16 inches
  • Media: Membrane

Spec Sheets:

Our Guarantee:

Your satisfaction, with our products and service, is of paramount importance to us. If you have any issues whatsoever, please give us a call at 1-866-283-9919, send us an email or better yet, hop on our Live Chat. We will take care of you. Thank you.

Here is a link to learn more about warranty & returns.

Customer Reviews
5.0 Based on 2 Reviews
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Filter Reviews:
United States United States
I recommend this product
Great Product

Only issue is the diameter of the filter. Just a little bigger than a three in filter wrench and way smaller for a 3.5 - 5 inch filter wrench. Had to shim the 3.5 to get the filter loose. Once replaced, it works great


Hello, hope you had an awesome summer. We are so happy everything worked out for you. We hope to see you again :)

Bob B.
United States United States
I recommend this product

they work the way they are supposed to. very good product.


Good morning Bob and thank you for taking the time to give us a review; most appreciated. We look forward to the privilege of being of service to you in the near future.