WSP Whole House Iron & Sulfur Filter - All-In-One, Katalox, Air-Injection

If your water leaves orange-brown stains on sinks and toilets or carries a rotten-egg smell when you run the shower, the WSP Whole House Iron & Sulfur Filter is designed to help reduce these issues. It treats iron and sulfur in one system, aiming to improve your water’s appearance and odor throughout your home.

The problem you’re facing

Orange-brown stains that build up in your toilet tank, sinks, or on your fixtures are a common sign of iron in your water. Alongside this, a strong rotten-egg smell—that sulfur odor—can come from dissolved hydrogen sulfide gas. These issues aren't just unpleasant; they affect laundry, dishes, and even your daily shower experience.

Why it’s happening

Iron and sulfur often enter water from natural sources underground, especially in well water. Iron comes dissolved in the water and forms particles that stick to surfaces once exposed to air. Hydrogen sulfide gas creates that sulfur smell when it escapes from the water. A simple water test for iron and sulfur levels will confirm if these are the causes of your staining and odor.

What it’s costing you to leave it

Over time, iron deposits build up inside pipes, water heaters, and fixtures, causing scale that reduces their efficiency and lifespan. That orange staining requires extra cleaning effort and can be tough to remove once set in. The sulfur smell affects your water’s taste and can make everyday tasks less pleasant. Without treatment, you may also use more soap and detergent because minerals interfere with their effectiveness.

How this system fixes it

This filter uses a combination of air injection and a special catalytic media called Katalox Light to tackle your problem. First, it injects air into the water, causing iron and sulfur compounds to change into solid particles. Then, the Katalox Light media helps further this reaction and filters out these particles, so they don’t reach your taps. The process is chemical-free and regenerates itself on a set schedule.

What this system can handle

The WSP Whole House Iron & Sulfur Filter treats multiple issues at once—iron staining, sulfur smell, and manganese, which can cause darker staining and bitter taste. It handles the demands of an entire home by treating all the water entering your plumbing, not just at one faucet. The system is designed to work continuously and renew itself automatically, keeping your water clear and odor-reduced without frequent intervention.

What you actually get

This system includes a pressure vessel covered by a lifetime warranty, so the tank itself is protected for as long as you own your home. You also get a bypass valve at no extra cost, allowing you to isolate the filter during maintenance without shutting off water to your house. Ten feet of discharge hose comes with the system for the backwash drain line. The main control valve and electronics have their own manufacturer's warranty.

Is this the right size for you

This filter suits homes with ongoing iron and sulfur problems that affect the whole water supply. It’s best for well water or other sources with multiple contaminant issues. If your water has only mild iron or sulfur, or if you have a smaller household, a less robust system might be sufficient. Conversely, very large homes or those with extremely high contaminant levels may require a larger or multiple systems, which we can help determine.

Living with it

The system manages its own cleaning cycles automatically, but like any water treatment equipment, it requires periodic maintenance by your plumber. Expect to check or service it roughly once or twice a year depending on your water usage and contaminant levels. The included bypass valve helps make servicing straightforward without interrupting your water supply.

What it won’t do

This filter reduces iron, manganese, and hydrogen sulfide smell, but it does not soften water hardness, remove bacteria, or filter out sediment independently. For hardness, a separate water softener would be needed, and other contaminants might require additional filtration systems tailored to those specific issues.

Why buy it from us

Water Softener Plus supplies this system with serviceable, high-quality components you can get parts for years from now. We include the bypass valve free, which many competitors charge extra for. Shipping anywhere in the U.S. is free and handled from Tampa, Florida. We offer a 90-day money-back guarantee and sizing help from knowledgeable staff who understand multi-contaminant water challenges.

Included with this system

• Lifetime warranty on the tank. The control valve and electronics carry the manufacturer's own warranty.
• Bypass valve included, so the system can be isolated for service while water keeps running to the house.
• 10 feet of discharge hose for the drain line.

Specifications

What this system handles

• Orange-brown iron staining
• Rotten-egg sulfur smell
• Rust rings in toilets and tubs
• Staining on laundry

The next step

Contact the WSP team for a free, no-obligation quote. Share your ZIP code and details about your water problem, and we will confirm the exact system configuration and send you pricing tailored to your needs.