Nelsen 5600 AIO 13x54 Iron System

The Nelsen 5600 AIO 13x54 Iron System is among the larger residential air injection filters in the lineup, designed for homes facing significant iron contamination or substantial daily water use. Its 13" x 54" tank holds a deep media bed capable of removing high concentrations of dissolved iron from well water, making it a capable choice where smaller filters would struggle to keep up.

Like all Nelsen AIO systems, it works without salt or chemicals. A maintained air pocket oxidizes the iron, the media filters out the resulting particles, and the Fleck 5600SXT control valve runs an automatic backwash to clear the bed and renew the air supply. The cycle repeats on its own programmed schedule, requiring almost no homeowner involvement beyond an occasional check of the valve settings.

• Heavy-duty 13" x 54" tank for high-capacity iron reduction
• Fleck 5600SXT air injection control valve, digitally programmed
• Black Structural mineral tank with complete gravel support bed
• All required media supplied and matched to the application
• 3/4" bypass valve included for service and isolation
• Salt-free and chemical-free; about 204 lbs shipping weight

Ideal Applications

With its larger diameter and tall body, this system delivers strong service flow rates suited to bigger homes, multiple bathrooms, or wells with heavy iron staining. Installed at the point of entry, it shields plumbing, water heaters, and fixtures from the rust buildup and discoloration that untreated iron produces. Supplied complete by Water Softener Plus, this Nelsen AIO iron filter brings near-commercial capacity and reliable 5600SXT automation to a residential setting, all with the convenience of chemical-free operation.

Before installation, it is worth testing your water to confirm iron concentration and pH, since air injection performs best within typical residential ranges. Position the unit on a level surface near your main supply line and a suitable drain, and allow clearance above the tank so the control valve can be serviced. Many installers pair an AIO iron filter with a downstream sediment filter or softener for the most polished result, and this Nelsen platform integrates easily into such a treatment train.

As part of the Water Softener Plus catalog of well-water treatment equipment, this unit is chosen and assembled to deliver consistent, real-world results, helping you protect your plumbing investment while enjoying noticeably better water at every fixture in the house.