Nelsen AIO 12"x52" Sulfur Filter System

Treat sulfur-heavy well water in larger homes with the Nelsen AIO 12" x 52" Sulfur Filter System. This high-capacity single-tank air injection oxidizing filter removes hydrogen sulfide, the source of rotten-egg odor, using only oxygen and an automatic control valve, restoring fresh, pleasant water throughout the house without any chemicals or salt for the homeowner to purchase and handle.

The system maintains an air pocket at the top of its 12" x 52" mineral tank during service. As sulfur-bearing water rises through the pocket, hydrogen sulfide is oxidized and then captured by the filter media bed. The Fleck 2510SXT control valve automatically backwashes the bed each day, flushing accumulated sulfur to the drain and renewing the air pocket so the system continues treating water without intervention, keeping odor at bay around the clock.

Specifications

• 12" x 52" black Structural mineral tank
• Fleck 2510SXT air injection control valve
• 3/4" bypass valve included
• Chemical-free hydrogen sulfide (sulfur) removal
• Automatic daily backwash regeneration
• Includes media and support bed, approximately 129.67 lbs

The larger 12" tank delivers greater capacity and service flow than the 10" models, making this system a fitting choice for bigger households or homes with pronounced sulfur odor. Installed at the point of entry, it treats every faucet, removing the unpleasant smell from drinking, bathing, and laundry water alike. The included bypass valve simplifies any future service. Because regeneration is automatic and salt-free, ongoing maintenance is minimal, giving homeowners a reliable, hands-off way to eliminate sulfur from their well water for good.

The larger 12-inch tank provides the service flow needed to keep treatment effective even when demand spikes across multiple fixtures, an important consideration in bigger homes. The proven Fleck 2510SXT control valve automates regeneration and is widely supported for future service. Confirming your hydrogen sulfide level before sizing ensures this capacity matches your water, and once installed, the system delivers consistent, chemical-free sulfur removal that eliminates rotten-egg odor and keeps your well water fresh and pleasant throughout the household. Over the long run, this chemical-free approach spares you the recurring cost and handling of sulfur-treatment chemicals. Sized correctly for a larger household, it keeps every faucet free of rotten-egg odor while requiring almost no day-to-day attention, making it a dependable long-term upgrade for sulfur-affected well water.