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Ultima V & VI 4 Stage Reverse Osmosis Filter Set

Ultima V & VI 4 Stage Reverse Osmosis Filter Set

Regular price $39.99 Sale

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ABCwaters Ultima 10" RO Carbon Block Water Filter 5 Micron Nsf Certified Brcbc-10

4 stage reverse osmosis replacement filter pack for Ultima V or VI. Includes 1 poly sediment filter, one coconut shell carbon block pre-filter, Lubricant and the GAC post-filter. Also for International filter RO4, GE model: GXR10 and Watts 4 stage and ZRO4, and most other 4 stage reverse osmosis systems. Includes new service manual written by an experienced water treatment technician. Service your reverse osmosis system like a pro! *We recommend our filter change toolkit. It makes the experience quicker, easier and more precise. It includes a filter housing wrench, a TDS (total dissolved solids) meter to test your membrane and a low range pressure gauge to verify the correct air pressure in your storage tank.


  • Works with GE GXR10, International Filter RO4, Watts 4 stage and ZRO4, and most 4 stage RO systems
  • Includes the service manual "How to Service Your Reverse Osmosis System" by Dionicio Porras.
  • ROFCTK, Filter change toolkit available separately. Service your RO like a pro.             
  • Includes ABCwaters Installation Manual.




Simplifying the consumer's experience remains one of our primary goals. We realize the consumers´ experience with our product extends beyond the point of purchase. Reviewing the post sales experience has taught us to focus on specific touch points that improve this experience. A critical touch point relates to the installation of our product. We find the easier we make our product to install, the more satisfied our customers feel.

Keep It Simple Video Tutorials

Our video tutorials are simple in structure using a step-by-step format. Our content is unique in the sense that it's developed using a novice perspective while following industry best practices.

Well Written Instructional Guides

We created instructional guides with an emphasis on following an easy-to-understand theme. Each guide can be printed or viewed electronically, and easy to locate when needed.

Value Added Items

We include additional items in our packages that improve the overall value of our offering. The additional items contribute toward installation best practices and are typically not offered by competing brands. These value-added items prevent customers from having to make additional trips to the hardware store for items that we include.


Customer Service

We are easy to contact. We have a customer service team ready to assist our customer needs. Customers can contact our customer service team Monday through Friday between the hours of 7am to 4pm Arizona time. Our customer service team answers questions regarding orders, package tracking, and technical support.

Technical Support

Our dedicated technical support team has over 25 years of combined experience in product installation and install knowledge. Most of our DIY customers save hundreds or even thousands of dollars by installing the system themself.

Innovative Approach

We´ve taken our technical support a whole new level. In addition to our email and phone support, we are now using video chat technology to assist customers. You can now Show & Tell rather than attempt to describe it. Customers find video chat really simplifies the process.


Offering affordable products has made us very popular with consumers. This popularity has ultimately contributed toward consumers´ gained purchase value. The more discounts we earn, the more the customer earns.

Affordable Pricing

Our popularity has given us the ability to leverage bulk purchase discounts that our competitors are unable to access. Our discounts make it possible to offer quality products at affordable pricing. The benefit of the discount is two fold in the sense that it affords us the ability to build a knowledge support team to serve our happy customers.

Fast Free Shipping

We offer fast free shipping. We are able to sustain this consumer benefit due to our high volume of shipping throughout the United States. Our shipping carrier provides discounts as our volume grows and ultimately benefiting the consumer.


ABC WATER / 602abcWATER - We are located in Phoenix Arizona USA. Give us a call with any questions about our ABCwaters built products.

(602) 222-9283
23910 N. 19th Ave Suite #8
Phoenix, AZ 85085


ABCwaters 5-Stage Reverse Osmosis Drinking Water System - 50 GPD RO