5 Stage Alkalizer Filter Pack


Made specifically for Ultima Reverse Osmosis Models GRO50-ALK, Model VII-ALK & RO5-ALK RO Systems.

  • Includes all filters and O-rings for your 5 stage alkalizer Reverse Osmosis system.
  • Keep your RO-ALK Reverse Osmosis system at peak performance with genuine OEM filters.
  • Made for the Ultima Model GRO50-ALK, Model VII-ALK, & RO5-ALK RO Systems. Also works with other brands of 5 stage reverse osmosis systems That have an Alkalizer or mineralizer post filter.
  • Since the post filter does have the mineralizer and GAC media in one filter this filter pack can upgrade a standard 5 stage RO to an alkalizer model for added minerals and higher pH in your drinking water.
  • Includes the new manual “How to Service your Reverse Osmosis System” by Dionicio Porras.
  • Filter change tool kit available separately; ROFCTK. Service your reverse osmosis system like a pro.
SKU: ROGROALKFP Category: Tag:


The 5 Stage Alkalizer Replacement Filter Pack is built specifically for the Ultima Models, GRO50-ALK and RO5-ALK Reverse Osmosis Systems. Will work with many other brands and 5 stage models that have an alkaline charger post filter. Includes OEM water filters with the benefit of adding an alkalizer post filter to raise the pH and add beneficial minerals back to the drinking water.

You can also install this filter pack in a standard 5 stage RO system to upgrade it to an alkalizer system for added beneficial minerals and higher pH drinking water.

Includes: 1- 5 micron sediment, 2- carbon pre-filters, 3- canister O-rings, and 1- inline Alkalizer post filter.

Also works with:
~Ultima ModelĀ RO5-ALK, & Model VII-ALK.
~Most 5 stage RO systems that use an alkalizer post filter with 1/4″FIP threaded connections.
~This filter pack qualifies for free shipping.
~Membrane sold separately. (does not need to be changed annually)

Includes theĀ service manual “How to Service Your Reverse Osmosis System” by Dionicio Porras. So you can service your RO system like a pro.

Additional information

Weight 4.3 lbs
Dimensions 10 × 10 × 4 in


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