Flexx Oxi-Gen Aeration Iron And Sulfur Filter By US Water Systems

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The Flexx OXi-Gen Superfilter never has any air in contact with the control. Instead of being mounted on the top of the tank, the control valve is mounted on the side of the tank and the air is introduced directly into the media where the oxidation occurs. It is very simple -but not many do it the right way. We do!

The Flexx Oxi-Gen Iron and Sulfur Filter harnesses the power of natural oxidation in combination with our catalytic media to effectively oxidize iron, sulfur, and manganese. The Flexx Oxi-Gen is engineered to be chemical free, carbon neutral, and eco-friendly.


Up to 10 ppm

Hydrogen Sulfide

Up to 12 ppm


Up tp .7 ppm

pH Levels

Works effectively from pH levels of 6.5 to 7.8

All NSF Approved Components

Key Features

Natural Oxidation - Air is injected into the top of the tank converting ferrous iron to ferric iron and oxidizing sulfur after untreated water has passed through the control valve preventing the control valve from fouling with iron and/or iron. The Sludge that forms in most Air Injection Systems is simply gone and the iron and sulfur is eradicated with ease.


Total System Control - WATERLOGIX Smartphone App and meter control give you total and advanced control over system regeneration, efficiency and ease of operation. All it takes is 30 seconds to program the Flexx Oxi-Gen. Fully Adjustable cycle times.


Eco-Friendly - No other iron or sulfur filter uses as little water as the Flexx OXi-Gen Superfilter. Other filters have to backwash every night to recharge the free air in the top of the tank. The Oxi-Gens unique design enables it to draw air into the system at anytime (to replenish the oxygen) without a full backwash, potentially saving thousands even tens of thousands of gallons of water a year.


Back Up Protection - Simple 9 volt battery back-up keeps electronic motor active and will return the control valve to service position in case of power failure during regeneration.


Built-In Meter - Electronic meter provides water usage history, number of regenerations, flow rates, and historical usage.


No Rattling or Banging - The control valve slowly releases compressed air charge prior to backwash cycle eliminating the explosive blast that can dislodge the drain line.


NSF Approved Components

The US Water Flexx Oxi-Gen Superfilter is a fully automatic backwashing filtration system. It uses all NSF and FDA approved components, including the Catalytic Carbon filter media, which is Tested and Certified by the WQA to NSF/ANSI 61.

Key benefits

The Flexx Oxi-Gen is designed the remove remove sulfur and iron. The sulfur and iron do not cause health issues in drinking water as long as the levels are not too high, but they can cause other problems such as the following:

  • Foul odor: Hydrogen sulfide causes a rotten egg smell in water, and can make drinks and other beverages unappetizing.
  • Poor taste: Hydrogen sulfide can affect the taste of drinks and food.
  • Corroded metal: Hydrogen sulfide wears away metals such as iron, steel and copper. As a result, hydrogen sulfide can shorten the lifespan of pipes and affect a home’s plumbing system.
  • Stained fixtures: Hydrogen sulfide may cause yellow or black stains on fixtures in the bathroom or kitchen.
  • Tarnished utensils: Hydrogen sulfide can create a black tarnish on silverware and stain copper or brass utensils.

The Flexx Oxi-Gen Iron and Sulfur Filter fixes these issues, providing your whole house with clean, odorless water

Leading The Industry

At US Water Systems, we believe that you deserve the best possible product. That’s why we’ve taken a professional grade tank and partnered it with our proprietary smart valve technology. Our smart valve system integrates directly with your smart phone via Bluetooth 5.0. Simply download the free Waterlogix companion app, pair the devices, and you’ll have access to a real time dashboard and settings. The application allows you to set specifications and track and monitor all water usage.


Model #BathroomsPeak FlowBackwash FlowFilter Tank Size
081-FX-1501-210 GPM5 GPM10" x 54"
081-FX-2503-620 GPM7 GPM13" x 54"

System Includes



additional information

Warranty10 Years on Carbon Tank 7 Years on Carbon Filter Valve & Valve Electronics
ManufacturerUS Water Systems