Nelsen Katalox Air-Injection (AIO) Iron & Sulfur Filter

NWS Control-Flow AIO with Katalox Light

When a well throws several problems at you at once, a single-contaminant filter is not enough. This NWS Control-Flow air-injection system is loaded with Katalox Light media to take on iron, manganese, and hydrogen-sulfide odor together — chemical-free, in one tank.

Built for combination water problems

It is common for a well to show iron staining, the darker staining and bitter taste of manganese, and a sulfur odor all at the same time. Treating each in a separate vessel is expensive and space-hungry; this system consolidates the job into one tank by combining air-injection oxidation with a catalytic media proven against all three.

Air injection meets catalytic filtration

Water first passes through an air pocket at the top of the vessel, oxidizing the dissolved metals and sulfide. The Katalox Light bed then catalyzes that reaction further and filters the resulting particles from the water. The Control-Flow valve handles backwash and air renewal on a schedule, so the system cleans and refreshes itself with no chemicals to buy.

Key advantages

• Three problems, one system: iron, manganese, and sulfur.
• High-performance Katalox Light media for strong, durable results.
• Programmable Control-Flow valve matched to your water and demand.
• Chemical-free, self-renewing operation.

Multi-contaminant wells reward careful sizing and, where hardness or low pH are present, correct staging. The system plumbs into the main line and needs a drain for backwash. Share your water test and flow rate and we will confirm the build and size it for you. Ships free in the US with manuals and expert support.

One system, correctly matched

Combination wells vary widely, so the media fill and backwash timing that work for one home may be wrong for another. Provide a recent water analysis and your flow requirements and we will confirm this multi-contaminant build is the right answer, set it up for your specific water, and support you through installation and beyond.

With free US shipping, complete documentation, and knowledgeable support behind every order, you can treat iron, manganese, and sulfur together with confidence — and finally enjoy clean, clear, odor-free water at every tap in the house.