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Nelsen Corporation

CS AIO 12"x52" Sulfur System

CS AIO 12"x52" Sulfur System

Regular price $1,368.99
Regular price Sale price $1,368.99
Sale Sold out
Taxes included. Free shipping to the lower 48 — nothing added at checkout.
Quantity
  • Free shipping in the USA
  • 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) Connected Series air-draw metered valve with Bluetooth app
  • Control valve: Connected Series air-draw metered valve with Bluetooth app with built-in air injection.
  • Bypass: 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 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.


This parcel-shippable CS AIO 12"x52" Sulfur System delivers the larger-capacity version of 's Connected Series AIO™ Plus odor control, packaged for easy parcel delivery. The 12" x 52" tank suits higher-demand homes, and the air-injection process clears hydrogen sulfide odor without ongoing chemical feed. The parcel-ready build avoids freight handling, a welcome convenience for installers and homeowners.

The Connected Series valve pairs over Bluetooth with the free Legacy View app for iPhone and Android™, simplifying programming and monitoring. Its AIO Plus design provides independently programmable air-draw and backwash cycles, so a fresh air pocket can be drawn daily without a separate backwash to conserve water, while a slow release of the air charge protects the drain line from the blast typical of older units. Included are the Connected Series Air Draw Meter Control Valve, bypass valve, black polyglass mineral tank, and the sulfur-reduction media and support bed.

System Summary

  • 12" x 52" sulfur system, parcel-friendly packaging
  • Bluetooth Connected Series valve with Legacy View app
  • Programmable air-draw and backwash save water
  • Slow air-charge release safeguards the drain line
  • Includes media, support bed, and bypass valve
  • Shipping weight: approximately 130 lbs

Air injection oxidizes hydrogen sulfide into a filterable form that is flushed to drain, restoring fresh water without chlorine. The larger tank handles heavier sulfur and higher flow, while the parcel-ready packaging eases handling and delivery. In operation the valve draws a daily air pocket, oxidizes the gas, and backwashes the bed to drain on a metered schedule. Add plumbing connections separately, and choose the optional chrome tank jacket for visible installations.

The parcel-shippable 12" x 52" sulfur filter brings larger-capacity odor control to rural and online buyers without the hassle of freight. Its taller, wider tank handles stronger sulfur and higher flow, while air injection removes the gas at the source for genuinely fresh water. The metered valve and daily air-draw cycle keep operation efficient, and the Legacy View app lets the homeowner manage everything from a phone, combining capacity, convenience, and chemical-free performance in one package. For larger rural households, that mix of capacity, efficiency, and remote convenience adds up to fresh, odor-free water with very little ongoing attention required.

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