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Aquasential® Select Plus Series® Iron-OX5® Water Filter

Get better water and a cleaner home with just one system. This iron filter for well and city water prevents rust stains, limits plumbing clogs and improves water quality — all with an environmentally friendly, affordable design.

Ready for a whole home water upgrade? Your local Culligan® water experts can help determine the right solution for your municipal or well water. Schedule your free, in-home water test or phone consultation to get started.

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Sustainability Plus Convenience

Space-Saving Design

The Iron-OX5 system automatically keeps the aeration process active in a simple, single-tank design.

Flexible Locations

Choose between indoor and outdoor models for your needs.

Chemical-Free Filtration

This iron water filter system uses a natural aeration process to treat your water without the need for chemicals.

Hassle-Free Monitoring

The exclusive Culligan Soft-Minder® meter monitors daily water use and provides advanced system diagnostics.

Space-Saving Design

The Iron-OX5 system automatically keeps the aeration process active in a simple, single-tank design.

Flexible Locations

Choose between indoor and outdoor models for your needs.

Chemical-Free Filtration

This iron water filter system uses a natural aeration process to treat your water without the need for chemicals.

Hassle-Free Monitoring

The exclusive Culligan Soft-Minder® meter monitors daily water use and provides advanced system diagnostics.

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More Features for Better Filtration

With an iron filter for home use, you’ll enjoy thoughtfully designed features, reliable functionality and a virtually limitless supply of better water without the hassle.

  • Reliable Construction

    A sturdy media tank and a smooth, non-permeable inner shell make the Iron-OX5 highly durable.

  • Unrivaled Control

    The bypass valve allows you to avoid waste in areas that don’t need filtered water — like your lawn.

  • On-Demand Insights

    An easy-to-read, backlit display lets you know your whole house iron water filter is working and warns of system malfunctions.

100% Satisfaction Guarantee

If you are dissatisfied with your Culligan product for any reason within 30 days of your purchase, Culligan will remove the product and refund the purchase price.

Third-Party Certified

The Culligan Aquasential Select Plus Iron-OX5 water filter systems have been tested and certified by WQA against NSF/ANSI Standard 372 and NSF/ANSI Standard 42 for the effective reduction of iron up to 500 gallons as verified and substantiated by test data. The indoor system is also certified to CSA B483.1. Learn more about product certifications here.

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Ready To Take the Next Step?

Schedule a free, in-home consultation and water test to get one step closer to the safer water your home deserves. With options to buy, finance or rent, your local Culligan water experts will make recommendations based on your home, water usage, test results and any other concerns.

Schedule Free Water Consultation

More Reasons To Choose a Culligan Iron Water Filter System

01

Better Water

The Iron-OX5 targets iron to provide better water for cleaning, bathing, cooking and drinking.

02

Efficiency

03

Protection

04

Reliability

Our Environmental Impact

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40 Billion+ Bottles Saved

Culligan water filtration solutions benefit the environment by reducing single-use plastic bottle waste and saving billions of bottles each year.

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Earth-Conscious Innovation

We prioritize sustainability in designing and developing new products.

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Global Water Leadership

Culligan has joined the CEO Water Mandate and the Water Resilience Coalition to lead the way in positive, global water stewardship.


Specifications

Warranty

Culligan products are reliable and long-lasting, with industry-leading warranties.

  • Control valve body, excluding internal parts and the filter tank: Ten-year warranty
  • AccuSoft® circuit board and Soft-Minder® meter, if so equipped: Five-year warranty
  • Entire system: One-year warranty

To access customer support, call your local Culligan water expert or​ fill out this Maintenance & Support form​.

Download Owner’s Guide

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Product Specifications

10”

Media Tank Size

10” x 54”

Overall Height

67”

Water Pressure Limits

20 - 60 psi

Temperature Limits

33° - 120° F

Electrical Requirements

24V/60Hz


Installation & Maintenance


Questions & Answers

Is this whole house iron water filter environmentally friendly?

How does this system filter iron from water?

How long does this iron water filter system last?

Is the Aquasential Select Plus Series Iron-OX5 Water Filter a good choice for well water?


Ratings & Reviews

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We could not be happier with the quality and great taste of our water!

Culligan is always quick and efficient, plus the staff has helpful answers about products and services.

— Thomas J, WA

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I’m so happy we chose Culligan.

We had severe problems with our well water and after we got the new filtration system installed, it’s like magic – all the issues just disappeared.

— Puja C, AB

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The Culligan team is always prompt, polite, friendly and professional.

They answer all of my questions and they are always respectful of my home.

— Debra M, MI

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We could not be happier with the quality and great taste of our water!

Culligan is always quick and efficient, plus the staff has helpful answers about products and services.

— Thomas J, WA

big quote icon
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I’m so happy we chose Culligan.

We had severe problems with our well water and after we got the new filtration system installed, it’s like magic – all the issues just disappeared.

— Puja C, AB

big quote icon
big quote icon

The Culligan team is always prompt, polite, friendly and professional.

They answer all of my questions and they are always respectful of my home.

— Debra M, MI

big quote icon
big quote icon

We could not be happier with the quality and great taste of our water!

Culligan is always quick and efficient, plus the staff has helpful answers about products and services.

— Thomas J, WA

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Let’s Get Started

Start enjoying the benefits of trustworthy water in your home with help from your local Culligan water experts.

Schedule Free Water Consultation

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¹Max flow rates and pressure drop characteristics have not been validated by the Water Quality

Association. The maximum specified flow rate at which the system will deliver treated water, as

validated by the Water Quality Association, is defined as service flow.