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Nelsen Corporation

CS AIO 13"x54" Iron System

CS AIO 13"x54" Iron System

Regular price $1,700.99
Regular price Sale price $1,700.99
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Taxes included. Free shipping to the lower 48 — nothing added at checkout.
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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
13" x 54" 13" x 54" iron-removal filter media 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: iron-removal filter media, 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 dissolved iron: clear water with no orange or brown stains
  • Protects fixtures, laundry, water heaters and appliances
  • Daily automatic backwash sends the trapped iron to drain
  • 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.


The CS AIO 13"x54" Iron System is a high-capacity member of 's Connected Series AIO™ Plus line, built for larger homes with significant iron in their well water. The 13" x 54" tank provides ample bed depth for oxidation and filtration, while smart Bluetooth control keeps operation simple even on a demanding installation with high peak flows.

Pairing with the free Legacy View app for iPhone and Android™, the Connected Series valve lets you program and monitor performance from your phone. The AIO Plus design offers independently programmable air-draw and backwash cycles, so the air pocket can be refreshed daily without an added backwash, saving thousands of gallons annually, and it releases the compressed air charge slowly to protect the drain line. The system includes the Connected Series Air Draw Meter Control Valve, bypass valve, black polyglass mineral tank, and all media and support bed for iron reduction.

  • 13" x 54" black polyglass mineral tank for high capacity
  • Connected Series Air Draw Meter Control Valve with Bluetooth
  • Free Legacy View app for iPhone and Android™
  • Programmable air-draw and backwash cycles save water
  • Media and support bed included for iron removal
  • Shipping weight: approximately 195 lbs

Air injection converts dissolved iron into filterable particles that are flushed to drain, eliminating rust stains on fixtures and laundry without chlorine or potassium permanganate. The larger tank is well suited to bigger households and heavier iron concentrations, and the metered valve regenerates only as water use requires. With media and support bed included, installation is mainly plumbing the tank and programming the valve via the app. Choose plumbing connections separately, and add the optional chrome tank jacket for a finished appearance in visible utility spaces.

The 13" x 54" tank represents the high-capacity end of the residential iron lineup, giving larger homes the bed depth to handle heavier iron without frequent breakthrough. Demand-based metering ensures regeneration matches usage, and the daily air-draw cycle limits backwash frequency for lower water consumption. With Legacy View app control, the homeowner can monitor performance and adjust settings remotely, making this a powerful yet manageable solution for demanding whole-house iron removal.

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