Nelsen Corporation
AIO 12"x52" Sulfur Filter System
AIO 12"x52" Sulfur Filter System
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- 90-day returns
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A complete whole-house air-injection filter. One price includes everything listed below.
What's in the box
| Size | Mineral tank | Media | Control valve |
|---|---|---|---|
| 12" x 52" | 12" x 52" | sulfur-removal filter media (catalytic carbon blend) | Fleck 2510SXT air-injection valve |
- Control valve: Fleck 2510SXT air-injection valve with built-in air injection.
- Bypass: 3/4" bypass valve (included).
- Mineral tank: black fiberglass-wrapped mineral tank with support bed and distributor.
- Media: sulfur-removal filter media (catalytic carbon blend), sized to the tank.
- Also included: 1" plumbing adapters, install and service manuals.
- Ships pre-built, ready to install, free in the US.
How it works
The valve draws a pocket of air into the top of the tank. Water passes through the air, which oxidizes iron, manganese and hydrogen sulfide into particles, and the media bed filters them out. Every day the valve backwashes the bed, sends the trapped particles to drain and refreshes the air pocket.
Media benefits
- Removes hydrogen sulfide: no rotten-egg smell
- Stops black staining on fixtures and silverware
- Daily automatic backwash keeps the bed clean
- Air injection oxidizes iron, manganese and sulfur with plain air, so no chemicals or chlorine are added
Why this system costs what it does
| This system | Typical lower-priced kits | |
|---|---|---|
| Iron and sulfur treatment | Air injection: oxidizes with plain air, no chemicals | Often chlorine or permanganate feed, or no oxidation step |
| Filter design | Automatic daily backwash keeps the media bed clean | Often a non-backwashing upflow head or a cartridge housing |
| Bypass valve | 3/4" bypass included | Often not included or an extra option |
| Media | Named media, sized to the tank | Media type or amount often not stated |
| Delivery | Ships pre-built, ready to install | Often ships in pieces for you to assemble and load |
| Shipping | Free in the US | Free only above a minimum, or extra |
Not sure which size? Send a water test or tell us your symptoms and we will size it free.
Treat sulfur-heavy well water in larger homes with the 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.
