GRO-5 Stage Alkalizer Filter Pack


Made specifically for 5 stage Green Reverse Osmosis (GRO) ALK systems

  • Includes all filters and O-rings for your GRO 5 stage alkalizer Reverse Osmosis system.
  • Keep your GRO-ALK Reverse Osmosis system at peak performance with genuine OEM filters.
  • Made for the Ultima GRO 5 stage alkalizer RO Systems. Also works with The Ultima VII 5 stage alkalizer RO Systems and other brands of 5 stage reverse osmosis systems.
  • 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 GRO-5 Stage Alkalizer Replacement Filter Pack is built specifically for the Ultima and other brands of GRO 5 stage Reverse Osmosis Systems with the added benefit of adding an alkalizer post filter to raise the pH and add beneficial minerals back to the drinking water.

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 Model VII ALK RO systems.
~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 the┬áservice 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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