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


This Salt-Free Water Softener and Well Water Filter Combo from RKIN uses the power of oxygen to transform ordinary well water into filtered, healthy spring-like water throughout your entire home.


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Why we like it…

This Salt-Free Water Softener and Well Water Filter Combo from RKIN uses the power of oxygen to transform ordinary well water into filtered, healthy spring-like water throughout your entire home.

  • Filters iron, sulfur, and manganese
  • Salt-Free Water Softener protects appliances and plumbing from harmful hardness build-up
  • Certified components
  • Bluetooth App-enabled but not required
  • Lifetime Warranty on Tanks and Parts*
  • Free Shipping within the continental US
  • Detailed, easy-to-follow, step-by-step instructions for installation and filter replacements

    Need Help Choosing a Whole House Water Treatment System?

    Schedule a call to understand the the various whole house water treatment options available and get recommendations on what is best suited for your household needs. Schedule a call for a date and time convenient for you. Call 717-869-6968


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

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

RKIN whole house water filter system

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 an RKIN water softener

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.

Why use an RKIN water softener and conditioner

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.

RKIN Independent laboratory testing

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!

How RKIN Well Water Filter System works

Multi-Stage Well Water Filter

Stage 1 – Air Pocket. As water passes through the air pocket, iron, sulfur, and manganese are oxidized. Additionally, dissolved oxygen is added to the water.

Stage 2 – Greensand Fusion. Media for efficient reduction of iron, manganese, & sulfur. The media bed removes the oxidized contaminants from the water.

Distribution System – Enpress┬« Vortech. Innovatively designed to provide increased
backwash efficiency using less water, and saving money.

RKIN Well Filter How it works

Smart Control Valve

Bluetooth Enabled Smart Control Valve: Water use is monitored for peak efficiency.

Built-in backup of settings during power outages.

Simple diagnostics and design provide for easy maintenance. 12V DC operation plugs into a regular 120V outlet with an AC adapter.

Mobile app for easy setup and monitoring.

RKIN Zee Pro Sediment Filter How it works

Zee Pro Sediment Filter

Designed to filter out sand, silt, clay, and any other sediment.

This 5-micron sediment filter is the largest size available for maximum flow rates and longevity. It’s 20 inches high and 4.5 inches wide.

High-Quality Filter Housing with Bacteriostatic Technology will provide years of pain-free filter replacements.

How RKIN Salt-Free Softener Works

Onlisoft Salt-Free Water Softener

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. It will work for a lifetime and doesn’t require replacements or maintenance.

Additional Information

Weight N/A

WF10OS8 for 1-3 Bathrooms, WF13OS9 for 4+ Bathrooms



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In our ongoing efforts to lower our carbon footprint we are moving a large portion of our online catalog to ship directly from the vendor. All this means is that your order may arrive at different times from different places. However, rest assured you will still get all the Good Stuff you know and love!

If you have ANY questions about your order or this product, do not hesitate to reach out to us at 717-869-6968. Thanks!