Salt - Free Water Softener and Well Water Filter Combo - RKIN

Salt-Free Water Conditioner and Well Water Filter Combo

$3,460.35 USD $3,986.37 USD
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Enjoy filtered water throughout your entire home, with protection against hardness build-up, iron stains, and sulfur odor

Experience the benefits of softer skin, healthier hair, and better-tasting water and food, all made possible by our certified components

Rest easy with our 1-year satisfaction guarantee, lifetime warranty on tanks and parts, made in the USA manufacturing

1 year satisfaction guarantee

Insured Fast Shipping

Best Price Guarantee

Expert Staff Support

Filter Out Iron, Sulfur, and Manganese

Does your water smell like rotten eggs? Do your sinks & toilets have orange staining? You and your family deserve the best quality water and expect that it be delivered at each faucet whenever needed.

RKIN Filter System is the answer to your problem with water to reduce Iron, Sulfur, and Manganese.

Softer Skin & Healthier Hair

Eliminate contaminants in the water that can be harmful to your body. By filtering out iron, sulfur, and manganese, you can avoid the negative effects of these elements, promoting softer skin and healthier hair.

Why Use a Water Softener

The mineral build-up, or scale, can occur in plumbing and household appliances when your water is hard. Solid deposits of calcium carbonate can form when hard water is heated. This scale can reduce the life of appliances, raise the cost of heating your water and clog pipes. Long-term movement of hard water through a pipe results in scale buildup. This can gradually close up the pipe and lower your water pressure.

Prevent & Reverse Hardness Build-up

Extend the life of your plumbing and household appliances by preventing and reversing scale build-up. OnliSoft Salt-Free water treatment system naturally neutralizes hardness minerals into inactive microscopic crystal particles without salt or any other harsh chemicals.

Independent laboratory testing

Test once and ensure you are purchasing the proper water system for your home.

A water test by a certified independent laboratory will help you determine exactly which water issues are present and identify the proper equipment needed to treat them. For most people, on well water Metals and Minerals test is sufficient. If you notice yellow coloration of water or staining, a tannins test is also required.

Access easy sampling, certified laboratories, and unbiased expert advice with SimpleLab. It's advanced water testing made easy. Our easy-to-read, professional water report provides a complete picture of your water quality.

We will even credit the water test cost towards your combo well water system purchase!
Learn more

OnliSoft Tank

ZEE Pro Filter Housing

ZEE Pro Sediment Filter

Sediment Filter Wrench

Bypass Valve

Two 1" MNPT PVC Elbow Fittings

Hose Bib Assembly

ZEE Pro Mounting Kit

Installation and Product Manual

Well Water Filter

Bypass Valve

AC Adapter

Two 1" MNPT Elbow Fittings

15 ft Drain Line Hose

Installation and Product Manual

RKIN OnliSoft Pro Saltless Water Softener Carbon Filter Combo is featured in the videos below. The Well Water Filter and/or Salt Based Water Softener installation will be very similar, with additional drain and electrical outlet required.

Does the RKIN OnliSoft Whole House Water Conditioning System add anything to the water?

No, it doesn't. The OnliSoft Whole House Water System neutralizes hardness via Seed Assisted Crystallization and protects your appliances from hardness build-up.

What is OnliSoft?

OnliSoft is a maintenance-free filtration media designed to prevent scale build-up by transforming hardness molecules into harmless minerals that no longer cling to household and appliance plumbing surfaces. This is accomplished without adding anything to the water, such as salt, acids, or any other chemicals.

How it works: The OnliSoft media naturally neutralizes hardness minerals through Seed Assisted Crystallization. This process of capturing, accumulating, and transforming the hardness minerals into inactive microscopic crystal particles occurs without introducing additional substances. These deactivated particles that are suspended in the water pass through and ultimately exit the entire household plumbing system.  

The OnliSoft media is non-absorbent and will work for a lifetime. This means that there are no replacements or maintenance required.

Does the RKIN OnliSoft Whole House Water Conditioning System require any maintenance?

The OnliSoft Whole House Water Conditioning System requires no maintenance and is a great money saver. It needs no electricity to operate and produces zero water waste. And since our water treatment system is salt-free, it doesn't require the yearly maintenance hassle and cost that is involved with standard salt softeners.

ZEE Pro Sediment Pre-filter will require replacement. Please below.

Who installs my RKIN Water System?

RKIN ships direct from the factory, saving you over 60% of the standard retail cost. Our products' user-friendly design makes installation easy with or without professional help. However, if you're not mechanically inclined, we do recommend hiring a plumber to help with installation.

Learn more about RKIN installation services, currently only available in southwest Florida.

When I move, can I take my RKIN Water System with me?

The RKIN easy-install design makes moving the system between houses a breeze. Just put the system into bypass mode, disconnect it, and take the system with you. The system can be re-installed in your new home with or without professional help.

Do you have a technical service help desk?

Yes, RKIN's technical support staff is available by phone at 1-800-803-4551, via the contact form, and through live chat, Monday to Friday from 9 am to 5 pm EST. You can also reach us at any time by e-mail with any questions or concerns. Product-specific technical information is also available on each product page, which includes Installation Guides, Product FAQ, and Specifications.

Why should I get my water filter system from you?

RKIN specializes in well-built, user-friendly filtration systems made in Florida. Backed by guarantees that go above and beyond industry standards, each of our products comes with an industry-leading lifetime warranty and an unmatched one-year satisfaction guarantee.

Another factor that separates us from the competitors is our renowned customer service. Conveniently placed in Fort Myers, FL, our home office allows us to provide our customers with reliable and easily accessible help if needed.

How long will it take for me to receive my order?

We provide tracking numbers for all orders via email. All orders usually ship on the same or the next business day. But, sometimes, it might take us up to 5 business days to ship your order. Depending on where you are located, the product may take up to 5 business days to be delivered to your home. The whole home systems are usually shipped via UPS ground or Palletized Freight depending on the water system type and your location.

What if I have more questions or need support?

Please get in touch with us by clicking here.

Specs

RKIN Well Water Filter Manual

RKIN Well Water Filter Programming Guide

Onlisoft Pro Salt-Free Whole House Water Treatment System Manual

⚠ IMPORTANT: Do not use where water is microbiologically unsafe!

⚠ CAUTION: To ensure that this system is right for you, a well water test might be required.

⚠ IMPORTANT: Before installation, the OnliSoft media inside the tank needs to be soaked in water for a MINIMUM of 2 days.

⚠ CAUTION: Do not install on well water without checking with RKIN customer service representative first.

Well Water Filter RKIN Water System Models
Well Filter WF10 WF13
Bathrooms 1-3 4+
Tank Width 10" 13"
Tank Height With Head 64" 64"
Connection Size 1" 1"
Flow Rate 12 GPM 20 GPM
Operating Temperatures Operating Pressure pH Range
36°F-120°F 25-80 PSI 6.5-10
Salt-Based vs Salt-Free RKIN Water Softener Comparison
Water Softener Salt-Based Onlisoft Salt-Free
Salt replenishment is required Yes No
Drain is required Yes No
Electric outlet is required Yes No
Metered Operation for Water and Salt Efficiency Yes Not Applicable
Bluetooth and Mobile App Yes Not Applicable
Bluetooth can be disabled Yes Not Applicable
Acid or any other chemicals added No No
"Soft" feeling water Yes No
Hardness removed from the water Yes No, it’s neutralized via Seed Assisted Crystallization
Prevents hardness build-up Yes Yes
Salt-Free Conditioner RKIN Saltless System Models
Water Conditioner OS8: 1-3 Bathrooms OS9: 2-5 Bathrooms OS10: 4-6 Bathrooms OS13: 7+ Bathrooms
Zee Pro Pre-Filter Replacement Every 12 Months Every 12 Months Every 9-12 Months Every 6-9 Months
Tank Width 8" 9" 10" 13"
Tank Height With Head 48" 52" 58" 58"
Connection Size 1" 1" 1" 1.5"
Flow Rate 9 GPM Service / 12 GPM Peak 11 GPM Service / 17 GPM Peak 15 GPM Service / 23 GPM Peak 28 GPM Service / 41 GPM Peak
Shipping & Delivery

Free standard shipping within the contiguous United States(lower 48 states).

Orders are usually shipped the same or the next business day and delivered within 2-5 business days. Subject to in-region item availability and seasonal carrier shipping performance.

Order tracking numbers are emailed as soon as they become available. If you do not receive your tracking number within 24 business hours, please check your spam folder.

Price Match Guarantee

We work diligently to make sure that we offer the best prices for our products online. If you come across another retailer offering a lower price for our products than we are within 12 months of your purchase date, please let us know, and we will refund you the difference in price.

We want you to feel confident that you are getting the absolute best price for the product you are ordering from us. If you find that our own website, www.rkin.com, has lowered the price for the same item you ordered within 12 months of your purchase date, please let us know, and we will refund the difference in price.

Warranty & Returns

You get an unconditional one-year satisfaction guarantee with every RKIN whole-house water treatment system.

Lifetime Warranty included on Tanks and Parts. Free shipping on warranty replacements.

The Electronic and Mechanical Control Valves are warrantied for 7 years.

Specs

RKIN Well Water Filter Manual

RKIN Well Water Filter Programming Guide

Onlisoft Pro Salt-Free Whole House Water Treatment System Manual

⚠ IMPORTANT: Do not use where water is microbiologically unsafe!

⚠ CAUTION: To ensure that this system is right for you, a well water test might be required.

⚠ IMPORTANT: Before installation, the OnliSoft media inside the tank needs to be soaked in water for a MINIMUM of 2 days.

⚠ CAUTION: Do not install on well water without checking with RKIN customer service representative first.

Well Water Filter RKIN Water System Models
Well Filter WF10 WF13
Bathrooms 1-3 4+
Tank Width 10" 13"
Tank Height With Head 64" 64"
Connection Size 1" 1"
Flow Rate 12 GPM 20 GPM
Operating Temperatures Operating Pressure pH Range
36°F-120°F 25-80 PSI 6.5-10
Salt-Based vs Salt-Free RKIN Water Softener Comparison
Water Softener Salt-Based Onlisoft Salt-Free
Salt replenishment is required Yes No
Drain is required Yes No
Electric outlet is required Yes No
Metered Operation for Water and Salt Efficiency Yes Not Applicable
Bluetooth and Mobile App Yes Not Applicable
Bluetooth can be disabled Yes Not Applicable
Acid or any other chemicals added No No
"Soft" feeling water Yes No
Hardness removed from the water Yes No, it’s neutralized via Seed Assisted Crystallization
Prevents hardness build-up Yes Yes
Salt-Free Conditioner RKIN Saltless System Models
Water Conditioner OS8: 1-3 Bathrooms OS9: 2-5 Bathrooms OS10: 4-6 Bathrooms OS13: 7+ Bathrooms
Zee Pro Pre-Filter Replacement Every 12 Months Every 12 Months Every 9-12 Months Every 6-9 Months
Tank Width 8" 9" 10" 13"
Tank Height With Head 48" 52" 58" 58"
Connection Size 1" 1" 1" 1.5"
Flow Rate 9 GPM Service / 12 GPM Peak 11 GPM Service / 17 GPM Peak 15 GPM Service / 23 GPM Peak 28 GPM Service / 41 GPM Peak
Shipping & Delivery

Free standard shipping within the contiguous United States(lower 48 states).

Orders are usually shipped the same or the next business day and delivered within 2-5 business days. Subject to in-region item availability and seasonal carrier shipping performance.

Order tracking numbers are emailed as soon as they become available. If you do not receive your tracking number within 24 business hours, please check your spam folder.

Price Match Guarantee

We work diligently to make sure that we offer the best prices for our products online. If you come across another retailer offering a lower price for our products than we are within 12 months of your purchase date, please let us know, and we will refund you the difference in price.

We want you to feel confident that you are getting the absolute best price for the product you are ordering from us. If you find that our own website, www.rkin.com, has lowered the price for the same item you ordered within 12 months of your purchase date, please let us know, and we will refund the difference in price.

Warranty & Returns

You get an unconditional one-year satisfaction guarantee with every RKIN whole-house water treatment system.

Lifetime Warranty included on Tanks and Parts. Free shipping on warranty replacements.

The Electronic and Mechanical Control Valves are warrantied for 7 years.

Salt-Free Water Conditioner and Well Water Filter Combo

  • Enjoy filtered water throughout your entire home, with protection against hardness build-up, iron stains, and sulfur odor

  • Experience the benefits of softer skin, healthier hair, and better-tasting water and food, all made possible by our certified components

  • Rest easy with our 1-year satisfaction guarantee, lifetime warranty on tanks and parts, made in the USA manufacturing
$3,986.37 USD $3,460.35 USD Sale

Shipping calculated at checkout.

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Honest Reviews

Mario C.

Replacing the old spout was easy even the installation of the new one.

Janet C.

Very happy with this product. Have used it for 2 years. As we cannot fit an under counter water purifier...

Eric A.

100% would recommend this company, team, and products! Everything has been perfect. The water is so tasty and also appreciate...

Not sure which whole‑home system? Get a custom plan in 30 minutes.

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Talk to an RKIN water specialist—zero pressure. We’ll assess your water, compare options, and give you a clear recommendation with pricing and install fit.

  • Fast: Book a 30‑minute consult at a time that works for you.
  • Clarity: City or well water, scale, smells, stains - we’ll match the right fix for your home.
  • No risk: No obligation. If we can’t improve your water, we’ll tell you.
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Prefer to talk now? Call 1‑800‑803‑4551 (Mon–Fri, 9 AM–5 PM EST)