300,000+ Happy Customers
SoftPro® pH Neutralizer Calcite Water Filter (Neutralize Acidic Water)
Blue-Green Stains Around Your Drains? Your Water's Eating Your Pipes. Acidic well water doesn't just taste off — it actively dissolves your copper plumbing, one glass at a time. The SoftPro pH Neutralizer Calcite Filter raises your water from acidic to a safe, neutral 7.0+ pH, before it does real damage.
FACTORY-DIRECT SAVINGS
In stock. Shipped within 1–3 business days.
EASY INSTALLATION
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FREE SHIPPING ON $500+ ORDERS
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LIFETIME WARRANTY
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LIVE CUSTOMER SUPPORT
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DESCRIPTION
Acidic water is sneaky. It eats copper pipes from the inside, leaves blue-green stains, and can make water taste like pocket change. Your plumbing deserves better.
The SoftPro Calcite Filter is a whole-house pH neutralizer for well water. Its calcite media raises low pH toward neutral, helping protect pipes, fixtures, and appliances from corrosion.
Pair it with a SoftPro softener to handle the extra hardness calcite adds.
Balanced water. Happier pipes. Fewer blue stains.
HOW TO USE
- Test your pH. Calcite is made for acidic water.
- Measure your well pump flow rate and choose the size that matches.
- Install it after the pressure tank and ahead of any softener, following the install guide for drain and power.
- Check the media every few months and top it off. Calcite dissolves as it works, so it gets used up on purpose.
HOW DOES IT WORK
Calcite is crushed, naturally occurring calcium carbonate.
When acidic water passes through it, the media slowly dissolves, neutralizing the acid and nudging pH toward 7.
It self-regulates. The more acidic the water, the more calcite dissolves. Once the water is balanced, it chills out.
Side effect: a little extra hardness from the calcium. That's why it plays so nicely with a softener downstream.
Chemistry doing the heavy lifting. You doing nothing.
Well Owners Who Stopped The Staining
3 Easy Steps To Complete Transformation
It's never been easier to experience soft, clean water from every tap in your home...
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Place your order
Secure your SoftPro Elite City water softener with whole-house filter in a few clicks with our easy and secure checkout process.
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Get Fast Shipping
We'll pack and ship your order within 1–3 business days, with tracking sent straight to your inbox.
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Enjoy Soft, Clean Water
Experience spa-like water in just moments after installation without worry of hardness or contaminants. Set it and forget it!
Raise The PH. Protect The Pipes. Stop The Staining.
Acidic water sitting at a low pH corrodes plumbing over time. The SoftPro Calcite Filter brings it back up to a neutral, non-corrosive 7.0 — and it's genuinely low-maintenance: just one bag of calcite added roughly every 12 months under typical usage. Everything you need ships loaded and ready to install.
What's included:
- SoftPro NSF-certified backwash control valve
- 1" ported electronic valve
- Mineral tank with easy-fill plug
- 1.5, 2.0, or 2.5 cuft of calcite media
Warranty:
7 years on the control valve, 10 years on the tank — a stronger warranty than comparable Fleck valve systems.
Benefits:
- Eliminates acidity in the 6.0-6.9 pH range
- Longer life and higher flow rates than calcite cartridge filters
- Automatic backwash — less pressure loss over time
- Fully adjustable backwash and rinse cycles, saving water while maximizing performance
- Time-tested, hydraulically balanced piston seal and spacers built for years of trouble-free service
- Simple, user-friendly LCD display
- Rugged, heavy-duty build
How it works:
When acidic water contacts the calcite media, it gradually dissolves the calcium carbonate inside — and that's what raises the pH and neutralizes the water. The result: scale, rust, copper, lead, and other metals stop leaching into your plumbing system.
The SoftPro PH Neutralizer Calcite Filter — See It In Action
6 Months. No Games.
We're confident you'll love the water treatment systems we sell. If you don't? Return it for a full refund.
Corrosive... Acid Water... Neutralize It.
Save your plumbing — neutralize acidic water.NSF-certified Elite programmable control valve. Low maintenance. Up to 15 GPM peak flow rates. Large 1" ports for higher flow rates. Vacation mode. Editor & customer favorite
We Ship Fast. We've Been Doing This Since Before Your Wi-Fi Existed.
Multiple warehouses across the USA means your filter isn't taking the scenic route. 30+ years helping Americans get water that doesn't fight them. And yeah, we still pick up the phone.
Why Homeowners Choose Quality Water Over Others
See why thousands of people are switching to qualitywatertreatment
| SoftPro Elite | Competitor #1 | Competitor #2 | Competitor #3 | Competitor #4 | Competitor #5 | |
|---|---|---|---|---|---|---|
| Upflow Technology | Yes | No | No | No | No | No |
| 10% High-Capacity Resin | Yes | No | No | No | No | No |
| Precision Variable Brining | Yes | No | No | No | No | No |
| Lifetime Warranty* | Yes | No | No | No | No | No |
| 6-Month Money Back Guarantee | Yes | No | No | No | No | No |
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Check This Before You Buy
Find your well pump's flow rate before you pick a size. It's easy, it takes five minutes, and it's the difference between the right system and an expensive mistake.
Ensure Everything Runs Fluidly
Higher peak water flow rates power all your appliances, tubs, and showers — no pressure drop, even with the whole house running water at once.
What Filter Size Do You Actually Need?
Match your effective well pump flow rate to the backwash requirements to select the right size. The 1.5 CUFT is the typical size if your well pump can accommodate it — or go smaller if you don't need the higher flow rates.
Everything You Need To Know, In One Place
Genuine SoftPro parts. No gray-market nonsense — just the real thing, every time.
Why This System Actually Protects Your Plumbing
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Raise pH Levels
Eliminates acidity in the pH range of 5.5 to 6.9.
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Cartridge-Free, Economical
Simple pour-in media, typically added just 1-2 times a year. No expensive calcite cartridges required.
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Auto-Backwash
Automatically flushes trapped sediment, preventing water pressure drops over time.
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Easy-Access Dome Plug
Makes checking and adding calcite media genuinely simple.
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Higher Flow Rates & Longevity
Large 1" ports plus high-grade calcite media means strong flow and longer media life.
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Full spec sheet
SoftPro NSF-certified backwash programmable valve, large 1" ported control valve, mineral tank with easy-access dome fill plug, fully-adjustable backwash and rinse cycles, hydraulically balanced piston seal and spacers, simple LCD display, rugged heavy-duty build.
Real Experts. Real Value.
Our mission is simple: help people enjoy better water with quality water solutions for their families and businesses.
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We've delivered exactly that across North America since 1990 — better taste, fewer toxins, longer-lasting appliances and fixtures, gentler treatment of clothes, hair, and skin, and no more costly plumbing corrosion or staining.
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Not sure what you actually need? Our Water Intelligence Engine™ takes the guesswork out: it properly sizes your system, recommends the right treatment path, compares all major brands side by side, and grades your local water quality with contaminant findings.
Unmatched Expertise
At Quality Water Treatment, you're family, not foot traffic — and we know these products inside and out. Skip the big-box aisle and its pushy, under-informed associate; your odds of finding real expertise or the right equipment there are low. Shop with confidence here instead, and we'll get you the correct equipment for your specific needs, delivered right to your door.
Decades Of Experience, Zero Pushy Sales Tactics
After 30+ years in business, we know water treatment like no one else — and we want you to leverage that.
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Our trained water treatment consultants answer every question, compare all major brands, and show you every option with no pressure.
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Live chat, text, phone, email — everything you need to make the right call is at your fingertips.
Delivered To Your Door With Ease
Every order ships within 1–3 business days. No waiting, no hassle, complete transparency on order status — automatic email alerts, trackable anytime.
Real Experts. No Guessing Games.
You're investing real money in your family's water. We help you get it right — before AND after you buy.
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Unlike the big box stores, our team recommends the best solution actually available in the marketplace, not just what's sitting in the warehouse.
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SoftPro components are made using the highest-end parts and hand-assembled — email, phone, and text support, plus video guides, back you up before, during, and after installation.
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5.0 / 5
I just wanted to say thank you for your excellent products and service over the past 12 years.
Daniel R.Verified CustomerTexas
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5.0 / 5
After we installed the Softpro Elite I noticed a significant difference in the house water quality.
Julie M.Verified CustomerFlorida
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5.0 / 5
I decided to go with the Softpro water softener over Fleck. Very impressed and satisfied with their products and customer service!
Roy P.Verified CustomerCalifornia
WHY BUY FROM US
Real Experts. Real Value.
💧 Protect Your Plumbing
Acidic water can eat away at your plumbing, eventually causing leaks — and nobody wants to deal with water damage and toxic mold. Raise the pH from acidic to a neutral 7.0+, and that risk goes away.
💧 That Blue-Green Staining? That's Corrosive Water.
Blue or green stains around your fixtures and drains usually mean acidic water — anything below 7.0 pH. That acidity dissolves your copper pipes over time, and the dissolved copper is what shows up as staining. Left unaddressed long enough, it leads to leaks, water damage, mold, and eventually a full re-pipe. A quality pH neutralizer raises the pH back to 7.0 — neutral, no longer corrosive.
💧 The Science Behind the Fix
Acidic water (low pH) usually means low mineral content — and minerals are what raise pH in the first place. Calcite is naturally occurring calcium carbonate, crushed milled marble, with a self-limiting property built in. Applied correctly, it corrects pH just enough to reach a non-corrosive equilibrium — it doesn't overcorrect under normal conditions.
How it functions : When acidic water contacts the calcite media, it gradually dissolves the calcium carbonate inside, raising pH and neutralizing the water — preventing scale and the deterioration of rust, copper, lead, and other metals in your plumbing system.
💧 Affordable Ways to Pay
You deserve clean, filtered water starting now — not "whenever the budget allows." Zip gets you 4 interest-free payments. Affirm breaks it into small monthly chunks. We make buying simple.
💧 About Corrosive, Acidic Water
CORROSIVE WATER
More About Acidic Water Issues
That dreaded green-blue staining on your fixtures?
If you get blue or green stains on your fixtures or around drains, it is usually due to having corrosive acidic water.
Corrosive acidic water has a pH level less than 7.0.
Corrosive acidic water causes the blue and green staining that you see around your fixtures and draining. This is from your copper pipes deteriorating into your water and appearing on fixtures and drains.
If you let this occur for too long your plumbing will start leaking and may cause major water damage and mold. Your property will need to a full re-pipe replacement.
A quality pH neutralizer filter will raise the pH level to 7.0, which is a neutral state (no longer acidic water).
💧 Why Calcite Media Filter Treatment?
HOW TO FILTER ACIDIC WATER
What Is Calcite Limestone Media?
Typically, when you have acidic water (low pH level), it means that the mineral content is low in your water. Minerals are what raises the pH in the water.
Calcite is a naturally occurring calcium carbonate media that has a self-limiting property. Calcite is a crushed milled marble.
When applied properly, calcite media corrects pH just enough to reach a non-corrosive equilibrium. It does not overcorrect under normal conditions.
How it functions
When acidic waters comes into contact with the calcite media, it gradually dissolves the calcium carbonate (within the calcite) to raise the pH level which neutralizes the water.
This process helps prevents scale, and the deterioration of rust, copper, lead and other metals found within the plumbing system.
💧 How to get your flow rate.
>>>> Get your Flow Rate:
- Shut-off all faucets and make sure there is no running water.
- Place a 5 gallon bucket by a hose bib (spigot) near your well pump.
- Fully open the water hose bib until the well pump starts.
- Then, start filling up your 5 gallon bucket, and time how many seconds it takes to fill it up.
- Use the chart the following chart to get your flow rate.
💧 Well Water Filter Packages
Get a water analysis and expert recommendations.
It's free and instant.
RECOMMENDATION &
WATER ANALYSIS REPORT
Well Water Treatment Package Options:
Water Softener
High-Efficient softener system to handle most typical well water needs.
Removes:
- Hard Water
- Clear Water Iron, up to 3 PPM
- Manganese, up to 1 PPM
(Does not remove sulfur)
Package includes:
- SoftPro Elite Downflow Water Softener
Softener +
SoftPro pH Neutralizer
Calcite Filter
Water softener system that reduces excessive acidic water by raising water's pH levels.
Removes:
- Hard Water
- Clear Water Iron, up to 5 PPM
- Sulfur, up to 2 PPM
Package includes:
- SoftPro Elite Downflow Water Softener
- SoftPro pH Neutralizer
Calcite Filter
Softener +
SoftPro IronMaster AIO Filter
For well water with extremely high levels of iron, sulfur, manganese and/ or hydrogen sulfide.
Removes:
- Hard Water
- Iron, up to 15 PPM
- Sulfur, up to 5 PPM
- Manganese, up to 7 PPM
- Acidic Water, raise pH to 7.0+
Package includes:
- SoftPro Elite Downflow Water Softener
- SoftPro Pro IronMaster
AIO Filter
Ultimate Solution
Softener, IronMaster AIO & pH Neutralizer
For the most complex well water conditions, the Ultimate Package is a great solution.
Removes:
- Hard Water
- Iron, up to 15 PPM
- Sulfur, up to 5 PPM
- Manganese, up to 7 PPM
- Acidic Water, raise pH to 7.0+
Package includes:
- SoftPro Elite Downflow Water Softener
- SoftPro pH Neutralizer Calcite Filter
- SoftPro Pro IronMaster
AIO Filter
💧 Check Your Well Pump's Effective Flow Rate — Easy as 1, 2, 3
The size of your filter system depends on your well pump's actual flow rate. Get it wrong, and you risk choosing a system that requires more flow than your pump can deliver.
How to check it yourself, in 5 minutes:
1. Shut off all faucets — no running water anywhere.
2. Place a 5-gallon bucket at a hose bib near your well pump.
3. Fully open the bib until the pump kicks on.
4. Time how long it takes to fill the bucket.
5. Match your time against the flow rate chart to get your GPM.
Don't select a system that requires a higher flow rate than what you've got.
💧 Which Well Filter Package Is For You?
A quality softener alone may not be enough — it depends on your water quality. Here are your options:
Water Softener (Base)
Removes: Hard Water · Clear Water Iron up to 3 PPM · Manganese up to 1 PPM. Includes: SoftPro Elite Downflow Water Softener.
Softener + SoftPro pH Neutralizer Calcite Filter
Removes: Hard Water · Clear Water Iron up to 5 PPM · Sulfur up to 2 PPM · Raises acidic water pH. Includes: Softener + pH Neutralizer Calcite Filter.
Softener + SoftPro IronMaster AIO Filter
For extremely high iron, sulfur, manganese, or hydrogen sulfide. Removes: Hard Water · Iron up to 15 PPM · Sulfur up to 5 PPM · Manganese up to 7 PPM · Raises pH to 7.0+. Includes: Softener + Pro IronMaster AIO Filter.
Ultimate Solution — Softener, IronMaster AIO & pH Neutralizer
For the most complex well water conditions. Removes: Hard Water · Iron up to 15 PPM · Sulfur up to 5 PPM · Manganese up to 7 PPM · Raises pH to 7.0+. Includes: Softener + pH Neutralizer Calcite Filter + Pro IronMaster AIO Filter.
