Iron-stained sinks and yellowing laundry are just the beginning when your well water is contaminated with iron and hardness. Beyond ugly rust spots, this combination corrodes pipes, clogs fixtures, and leaves a gritty film on everything that touches your water. Over time, untreated iron and hard water can lead to costly plumbing repairs, inefficient appliances, and dry, irritated skin for your family. The hidden damage might be draining your budget and comfort without you realizing it.

The system that fixes it

Meet the Pentek Iron + Hard Water System, engineered precisely to tackle your well water’s toughest challenges. At its core is the Pentek-series air-injection control valve—a genuine, serviceable brand valve that actively injects air into the water to oxidize dissolved iron before filtration begins. This advanced valve design ensures optimal performance and longevity, unlike generic valve heads prone to failure or difficult servicing. The system's robust tank is built around an air-injection oxidizing chamber ahead of the softening section, uniquely layering two specialized medias: air-injection iron media and softening resin. This sequence means iron particles oxidize and get trapped first, preventing the iron from fouling and clogging the softener resin, which dramatically improves efficiency and media lifespan.

• Pentek-series air-injection control valve ensures precise oxidation and filtration control
• Dual-media tank: iron media oxidizes iron particles before water passes through softening resin
• Oxidizing tank prevents iron from fouling the softening resin, extending media life
• Genuine, serviceable valve head designed for easy maintenance and reliable performance
• Seamless integration of iron removal and hardness softening in one compact system

Pick your size

Select the size that matches your household’s bathroom count and water usage to ensure peak performance and longevity for your system.

What it does for your home

• Eliminates rust stains from sinks, tubs, and laundry, restoring spotless surfaces
• Prevents iron buildup that corrodes and clogs plumbing and appliances
• Softens water to reduce scaling on fixtures, pipes, and water heaters
• Protects your water-using appliances, extending their lifespan and saving repair costs
• Improves water taste and clarity, making drinking water more enjoyable and healthier
• Soothes skin and hair by removing harsh minerals that cause dryness and irritation

Experience a home free from iron’s damaging effects and the harsh impact of hard water — all with consistently clean, soft water flowing from every tap.

How the media works

The heart of this system is its dual-media technology designed to solve iron and hardness issues in sequence. First, the air-injection iron media introduces oxygen bubbles into your water, causing dissolved iron particles to oxidize and transform into solid particles, which can then be filtered out. This oxidation is crucial because it turns invisible, dissolved iron into filterable material. Once the iron is captured and removed, the water passes through the softening resin. Since the iron has already been stripped away, the resin doesn’t get fouled or coated, which keeps it working at peak efficiency to exchange hardness minerals for beneficial sodium ions. This two-step process guarantees your water is both free of iron staining and pleasantly soft, without the resin issues common in other single-media systems.

Why buy this system from us

Our Pentek Iron + Hard Water System stands apart because it delivers genuine, serviceable brand hardware that you can trust and maintain over time. We offer free water usage sizing consultation across the U.S. to help you pick the perfect system size tailored for your home. Plus, enjoy free shipping anywhere in the U.S., making your purchase hassle-free and cost-effective. Everything in this system is matched from one brand, ensuring compatibility and optimized performance without the guesswork of piecing together parts from different manufacturers.

Common questions

Q? How does the Pentek control valve improve iron removal compared to other valves?
A The Pentek-series air-injection control valve actively injects oxygen into your water, oxidizing dissolved iron before filtration. This precise control allows the system to remove iron more thoroughly and prevents the softening resin from fouling, unlike generic valves that don’t offer true air injection capabilities.

Q? Will this system reduce water hardness after removing iron?
A Yes, after the air-injected iron media oxidizes and filters iron out, the water passes through a softening resin that exchanges hardness minerals for soft water ions, providing you with water that is both iron-free and pleasantly soft.

Q? Can I maintain or service the valve head myself if needed?
A Absolutely. The Pentek-series valve is designed as a genuine brand component, meaning it’s built to be serviceable and replaceable, allowing you or a technician to perform maintenance without specialized or costly parts.

Shop the Pentek Iron + Hard Water (Well) System →

Prefer another valve brand? The same fix comes in Fleck, Autotrol, C-Series, Pentek and Pentair.