NWS
NWS Control Flow AIO 13x54 Sulfur Sys
NWS Control Flow AIO 13x54 Sulfur Sys
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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" | 2 cu ft sulfur-removal filter media (catalytic carbon blend) | Control Flow metered air-injection valve |
- Control valve: Control Flow metered air-injection valve 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-ready NWS Control Flow AIO 13x54 Sulfur System brings large-capacity hydrogen sulfide treatment to homes that prefer parcel delivery over freight. Built by , it removes rotten-egg odor from well water across the entire home using salt-free air injection oxidation and demand-based regeneration.
System Contents
- 13" x 54" black polyglass mineral tank
- 2 cubic feet of sulfur media plus base media
- 1" NWS control valve with Control Flow Technology
- Bypass valve included for maintenance and isolation
- Plumbing adapters chosen separately
- Packaged for parcel truck delivery; about 149 lbs
The system treats hydrogen sulfide without any chemicals. A pocket of air maintained in the tank oxidizes dissolved sulfur into a filterable form that the media bed captures and holds. Control Flow Technology meters regeneration to actual household water use, so the unit backwashes only when needed — flushing trapped sulfur to drain and renewing the air cushion automatically. There are no feed pumps, salt, or chlorine to manage at any point.
The large 13-inch tank provides high service flow for demanding households, and the 2 cubic feet of media supports strong, consistent odor control even under heavy daily use. Installed at the point of entry, it delivers fresh water to every tap and shower in the home. Supplied by Water Softener Plus, this configuration arrives nearly complete; add the plumbing adapters that match your supply lines for a clean install and efficient, low-maintenance performance year after year.
Testing your water for hydrogen sulfide and pH before setup helps confirm that air injection is the right approach and that the system is sized correctly for your conditions. Once installed and programmed, the unit requires very little hands-on care: the air pocket renews itself with every backwash and there is nothing to refill. Over the long term, only an eventual media replacement is needed to keep odor reduction at full strength.
Supplied and supported by Water Softener Plus, this -built system reflects the quality and consistency homeowners and installers have come to expect from the brand, giving you confidence in a long, dependable service life treating your home's water.

