WSP Whole House Iron & Sulfur Filter - Katalox, C-Series

If your water leaves orange-brown stains on fixtures or laundry, or your hot water smells like rotten eggs, you’re dealing with iron and sulfur issues. The WSP Whole House Iron & Sulfur Filter - Katalox, C-Series helps reduce these problems for your entire home.

The Problem

Orange or brown rings around your toilet tank, rusty stains in sinks, and a film on shower doors are classic signs of iron in your water. Meanwhile, a rotten-egg smell when you run hot water usually means sulfur is present. These issues aren’t just annoying—they show up daily and are tough to scrub off. Your coffee might taste off, and laundry can come out dull or stiff. Over time, these problems don’t get better on their own.

Why It’s Happening

Iron and sulfur in water often come from well sources, but municipal supplies can have them too. Iron dissolved in water is invisible but turns into reddish or brown particles when exposed to air or heat, causing stains. Sulfur, in the form of hydrogen sulfide gas, creates that rotten-egg smell, especially noticeable in hot water. The only reliable way to confirm this is a water test measuring iron and sulfur levels.

What It’s Costing You to Leave It

Iron buildup can clog pipes and reduce your water heater’s efficiency, meaning more energy use and shorter appliance life. Stains on fixtures and laundry require extra cleaning and special detergents, adding time and expense. Sulfur odors can make your water unpleasant to use, affecting everything from showering to cooking. Over time, these effects add up to frustration and higher household maintenance.

How This System Fixes It

This filter uses a process called oxidation combined with catalytic filtration. Air is injected into the water before it hits the filter, which changes dissolved iron and sulfur into solid particles. These particles are then trapped by the special Katalox media inside the tank. The system periodically flushes itself, clearing out trapped contaminants without needing extra chemicals.

What This System Can Handle

The WSP Whole House Iron & Sulfur Filter comes in two versions: Standard and Standard C-Series. Both handle iron, manganese, and hydrogen sulfide, reducing staining and odors for your whole home. They’re designed to work with a range of water qualities and volumes, managing typical levels of these contaminants before needing a backwash cycle. The C-Series offers enhanced durability and efficiency for heavier iron and sulfur loads or larger households. The system’s capacity and cleaning cycles are set when it’s sized to your water problem, ensuring it fits your needs without wasting water or salt.

What You Actually Get

The system includes a durable tank covered by a lifetime warranty, which means the pressure vessel is protected for as long as you own it. You also get a bypass valve included at no extra cost, allowing you to isolate the unit and keep water running to your home during maintenance. Additionally, 10 feet of discharge hose is provided for the drain line, making installation straightforward.

Is This the Right Size for You?

If you have moderate to heavy iron or sulfur issues and want whole house coverage, this filter is a solid choice. For lighter problems or smaller homes, the Standard version might suffice. If your water has very high levels or you have a large household, the C-Series is better suited. A proper water test and consultation will confirm which size fits your home best.

Living With It

Maintenance involves occasional backwashing cycles that the system automates to clear trapped contaminants. Cleaning or media replacement isn’t frequent but will be identified during sizing. The included bypass valve makes servicing easy without shutting off water to your home. Overall, upkeep is manageable and designed for long-term operation without frequent intervention.

What It Won’t Do

This system reduces iron, manganese, and hydrogen sulfide but does not soften hard water or remove other contaminants like sediment, bacteria, or chemicals. If your water has hardness issues or other problems, you would need separate equipment tailored for those conditions.

Why Buy It From Us

Water Softener Plus (WSP) offers this system with genuine serviceable parts, not sealed disposable units. The tank’s lifetime warranty and included bypass valve are uncommon benefits. We ship directly from Tampa, Florida, with free U.S. delivery and provide expert sizing help based on your water and ZIP code. Our 90-day money-back guarantee lets you try the system risk-free, backed by people who understand your water problem and how to fix it.

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

To find out which version fits your home and get a free quote, contact the WSP team with your water problem details and ZIP code. We’ll confirm the best configuration and send pricing tailored to your needs.