Essential Series – North Star® NSC31 Cabinet Water Softener
Compact, Efficient, and Smart Softening for Modern Homes
When space is limited but water quality matters, the Essential Series NSC31 Water Softener by North Star® is the perfect solution. This cabinet-style, single-tank softener is ideal for small utility rooms, closets, or other compact spaces where traditional two-tank systems won’t fit.
Designed for homes with 1 to 5+ people, the NSC31 combines reliable softening performance with smart, space-saving technology—delivering soft, clean water to every tap without taking over your utility room.
Key Features & Benefits
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💡 Compact Cabinet Design
One-piece, space-saving design fits where standard softeners can’t—perfect for townhomes, condos, and smaller homes. -
🧠 AutoSense™ Technology
Learns your household’s water usage patterns and optimizes regeneration cycles—saving water and salt over time. -
🔄 Smart, Efficient Operation
Electronic demand control system with metered regeneration improves efficiency with up to 5,090 grains per 2.4 lbs of salt. -
🚿 Clear Water Iron Reduction
Removes up to 8 ppm of clear water iron, helping protect appliances and fixtures from staining and damage. -
⚙️ Built-In Convenience Features
Includes a low-salt indicator, tank light for dim spaces, and custom-fit bypass valve for easy maintenance. -
💧 Consistent Water Pressure
High-flow valve delivers a steady 7.2 GPM (rated service flow) with peak flow rates up to 14.6 GPM. -
✅ NSF/ANSI Certified
Independently certified for performance and efficiency by NSF, CSA, and WQA to standards 44, 372, and B483.1.
Professional Installation & Local Expertise
As an authorized Brita PRO partner, Champion Plumbing brings industry-leading water filtration technology right to your home—installed by professionals who know the local water challenges inside and out.
With over 24 years of experience, our licensed, highly trained plumbers have helped thousands of homeowners across the Greater Twin Cities Metro Area improve their water quality and protect their homes.
Whether you’re in Eagan, Apple Valley, Lakeville, Minneapolis, St. Paul, or any city in our Service Area you can count on our team for expert advice, clean installs, and top-notch service—every time.
What Our Customers Have to Say about Champion Plumbing
The NSC31 is ideal for households of 1–5 people, especially where space is limited, such as townhomes, apartments, or older homes without utility room space for a traditional two-tank system.
Not at all. The Northstar Cabinet Softener provides full softening power in a compact footprint, offering simiar performance as many larger systems.
AutoSense™ monitors and learns your water usage patterns over time to determine the most efficient regeneration schedule—reducing salt and water waste.AutoSense™ monitors and learns your water usage patterns over time to determine the most efficient regeneration schedule—reducing salt and water waste.Your Content Goes Here
Yes, the NSC31 can reduce up to 8 parts per million (ppm) of clear water iron, helping to eliminate rust stains and protect your fixtures.
Yes, it’s tested and certified by NSF International, the Water Quality Association, and CSA, so you can trust in its safety, efficiency, and performance.
Champion Plumbing professionally installs every system and offers expert service and support after installation
Financing and Pricing
We understand that investing in a new water filtration or conditioning system is a big decision—and we’re here to make it easy.
Because every home is different, pricing can vary based on system size, installation layout, and water quality needs. To provide the most accurate estimate, we invite you to give us a call or fill out our quick quote form. One of our licensed plumbing experts will follow up with a personalized recommendation—no pressure, just honest advice.
💡 Financing Available Through GreenSky®
Champion Plumbing has partnered with GreenSky® to offer flexible financing options that help make clean, safe water more accessible—without the upfront stress. From low monthly payments to deferred interest plans, we’ll help you find a solution that fits your budget.
📞 Call us at 651-365-1340 or
📋 Request a Free Quote
Clean soft water, the right way—and on your terms.
Technical Specifications
| Feature | Details |
|---|---|
| Max Grain Capacity | 31,300 grains |
| Resin Volume | 0.81 cu. ft. |
| Rated Service Flow Rate | 7.2 GPM |
| Peak Flow Rate | 14.6 GPM @ 30 psi drop |
| Clear Water Iron Removal | Up to 8 ppm |
| Regeneration | Metered, electronic demand |
| Connection Size | 1″ NPT |
| Dimensions | 48″ H x 15″ W x 20.5″ D |
| Certification | NSF/ANSI 44, 372, CSA B483.1 |
Warranty Coverage
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1-Year Warranty – All parts
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5-Year Warranty – Electronics & control valve
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10-Year Warranty – Salt storage tank and fiberglass mineral tank