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Whole House Iron Reduction System

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Whole House Iron Reduction System

Does your well water have a strong "rotten-egg" smell? Do iron stains have you seeing orange-red stains on fixtures, dishes, and clothes? The Pentair Whole House Iron Reduction System effectively reduces iron and the appearance of orange-red staining. This system offers hassle-free maintenance as you blast away iron problems for your home. Insist on better water with the Pentair Whole House Iron Reduction System.
  • Reduce red-orange stains on toilets, sinks, and tubs
  • Uses an aeration process and catalytic coated mineral media to reduce contaminants without the use of harsh chemicals.
  • Two unique models to choose from to meet the demands of your home based on your home size (or number of bathrooms)
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Whole House Iron Reduction System
Whole House Iron Reduction System
SKU#: Product2G_599463320012


Benefits of Iron Reduction from Water

Our Whole House Iron Reduction System uses a catalytic coated mineral media to reduce iron, manganese, and sulfur in your home's water supply. Reduce that bothersome "rotten egg" smell and dark stains on your fixtures when you install a Pentair solution.

  • Simple yet robust valve design provides a low-maintenance and long-lasting system, with a premium electronic control.
  • Simple, electronic system for easy programming; maintains settings during power outages
  • Singular, rotary disc seal means longer life and lower maintenance
  • Self-cleaning injector reduces maintenance
  • Chemical-free operation minimizes operating costs, aerates the iron via an air oxidation process so no chlorine or bleach are needed

Reduce Staining


Enjoy Better Smelling Water


Enjoy Hassle-Free Maintenance


Enjoy Peace of Mind

How it works

Whole House Iron Reduction System

Air Oxidation

As your home’s incoming water passes through the unique Pentair valve head, the valve uses an aeration process which oxidizes the iron in your water for more effective filtration through the tank. This process requires no extra chemicals to be added, unlike other iron filtration products which require chlorine or bleach to be added. Aeration provides the dissolved oxygen needed to convert the iron and manganese from ferrous and manganous (soluble) forms to insoluble oxidized ferric and manganic forms.

Iron Filtration

Occurs when oxidized water passes through the media tank that is filled with activated catalytic coated mineral media. This reduces iron and manganese by filtering the contaminants as the water passes through the media. It reduces the iron and manganese from the water supply, delivering fresh water to the home. The media will need to be cleaned and reactivated on a regular basis through engaging the backwash cycle.


Periodically the system will go through a backwashing cycle where water is flushed through the system and up through the media, then discharged to the drain. Backwashing lengthens the life of the media and maintains the performance of the filter.


Backwashing cycles are controlled by the electronic meter on the top of the system’s tank. The backwash cycle can be set to a specified number of days or as the electronic head recognizes that a certain amount of water has been used.



Item #ImageFlow Rate {gpm}Diameter {in}Home Size (number of Bathrooms)Water ExperienceWater Problem
35928 4 10.25 1 to 3 Orange/Red Staining, Rotten Egg Smell Orange/Red Staining, Rotten Egg Smell
35929 4 10.25 4 to 6 Orange/Red Staining, Rotten Egg Smell Orange/Red Staining, Rotten Egg Smell

What’s Included

  • Electronic Valve Head
  • Resin Tank with Iron Reduction Media
  • Owner’s Manual / Installation Guide

Installation Information

Installation Recommendation: Professional

Location: Indoor/Outdoor. If installing outdoors, this system should not be installed in direct sunlight without the presence of a weather cover accessory (sold separately). System should not be installed in an area that is exposed to freezing temperatures. See Owner’s Manual for details.


Water Education Center

Beyond taste and odor, the volatile chemical nature of chlorine means it can react and form potentially harmful byproducts. But, how much chlorine is ‘safe’?

Learn About Chlorine

kitchen faucet washing fresh vegetables.

Chloramine is a disinfectant that consists of five parts chlorine and one part ammonia. So, in a sense, it’s kind of “chlorine plus.” Find out how it gets into your water and how you can treat it.

Learn About Chloramines

Soft water doesn’t have to be hard. Learn about what causes hard water and identify solutions to help reduce the related water woes.

Learn About Hard Water

Learn more about common water problems and how to tackle them in our Water Education Center.

Still Not Sure? Call us to speak with a Pentair Water Solutions home water expert.
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Comprehensive System Warranty

1-year system, parts and labor coverage.**

**Warranty applies to certified Pentair installs.
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