Nelsen AIO 10"x44" System

The Nelsen AIO 10"x44" System is a compact air injection oxidation filter built to tackle hydrogen sulfide and the rotten-egg odor that plagues so many well-water homes. Air injection works by drawing a pocket of air into the top of the mineral tank, oxidizing dissolved contaminants so they cling to the media bed and then rinse away during the automatic backwash cycle. Because the entire process relies on oxygen rather than chemicals, there is no salt, potassium permanganate, or chlorine to buy, store, or refill, which keeps both operating costs and ongoing maintenance to a minimum.

What's Included

Every system supplied by Water Softener Plus ships as a complete, ready-to-plumb package. At its heart is the proven Fleck 5600SXT digital control valve, which manages backwash timing and air draw automatically on a programmable schedule. The black Structural mineral tank, gravel support bed, and treatment media are all included and matched specifically for this sulfur application, so there is no guesswork involved in sizing or media selection. A 3/4" bypass valve is also provided, allowing you to isolate the unit for service without shutting off water to the whole house.

• Configured for sulfur (rotten-egg odor) reduction on private well water
• Fleck 5600SXT air injection control valve with digital programming
• 10" x 44" black Structural mineral tank with full gravel support bed
• Includes 3/4" bypass valve for service and maintenance
• Chemical-free oxidation — no salt, feed pumps, or additives required
• Shipping weight approximately 109.2 lbs; packaged for parcel delivery

This 10" x 44" size suits smaller households and lighter-duty service lines where space is limited but consistent odor control is still essential. The single-tank design installs at the point of entry, treating every fixture in the home from a single location. Routine upkeep is minimal: the valve handles its own periodic backwash, and the internal air pocket is replenished automatically on each cycle, leaving you with clearer, fresher water and no lingering sulfur smell at the tap or in the shower.

When planning the install, locate the system at the point of entry ahead of any softener so hydrogen sulfide is removed before it reaches other equipment or the water heater. A nearby drain handles backwash discharge, and the control head plugs into a standard outlet. Because sulfur problems can fluctuate seasonally on some wells, the scheduled backwash keeps odor control steady even as conditions change throughout the year.