RKIN OnliSoft Salt-Free Water Conditioner System
RKIN OnliSoft Salt-Free Water Conditioner System
RKIN OnliSoft Salt-Free Water Conditioner System
RKIN OnliSoft Salt-Free Water Conditioner System
RKIN OnliSoft Salt-Free Water Conditioner System
RKIN OnliSoft Salt-Free Water Conditioner System
RKIN OnliSoft Salt-Free Water Conditioner System
RKIN OnliSoft Salt-Free Water Conditioner System
RKIN OnliSoft Salt-Free Water Conditioner System
RKIN OnliSoft Salt-Free Water Conditioner System
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RKIN OnliSoft Salt-Free Water Conditioner System

RKIN SKU: RKIN-OS8

Stops scale from building up in plumbing and appliances without salt.

Price
Regular price $1,21468
Regular price $1,79595 Sale price $1,21468
Save $581.27
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Size
  • In stock, ready to ship
  • Backordered, shipping soon
Shipping, Returns, & Warranties

Orders Processing: We offer fast and reliable shipping across the continental U.S., with free shipping available on orders over $200 (exclusions may apply based on brand and product type). Orders are typically processed within 1–2 business days and transit time is 4–8 business days. Larger items may ship via freight and require a scheduled curbside delivery. Please ensure your contact details are accurate at checkout. For questions about delivery timelines, shipping eligibility, or special requests, feel free to contact us directly.

Order Confirmation: As soon as you place your order, you will receive an order confirmation e-mail.  This means that we have received your order in our system.

30 Day Returns: If your order arrives damaged, we will exchange you a replacement. Our return policy cover from the date of purchase. To be eligible, items must be unused, in their original packaging, and accompanied by proof of purchase. Defective products are eligible for free returns, with options for a refund or replacement. Customer remorse returns may incur return shipping fees and restocking fees. Refunds are processed within a specified timeframe, subject to restocking fees if applicable. Late or missing refunds should be addressed with your bank or credit card company first. Exchanges may be accepted for defective or damaged items. Shipping costs for returns are typically the responsibility of the customer, except in cases of damaged products. For more details, visit our Refund Policy Page.

View our Full Brand Warranty Page Here

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At a glance

FormatWhole-home water conditioning system.
Installation scopePoint-of-entry system planning for the home or building.
Before orderingReview the model documentation with an installer; confirm water conditions, required flow, space, connections, and any power or drain needs that apply to your installation.
Service matchMatch replacement components and any configuration choices to the exact model shown on this page.

RKIN whole-home treatment

A more considered approach to water at every tap.

Built for whole-home treatment and available configurations. Compare the home-size options and review the verified system details below to choose the right fit.

Product details

  • Protects appliances and plumbing from harmful hardness build-up.
  • Salt-less and non-electric operation.
  • Certified components.
  • Lifetime Warranty on Tanks and Parts*

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.

Comes Install-Ready

All our products come install-ready with minimal assembly required.

RKIN whole house water systems are manufactured in the USA and are made to be installed easily without needing professional help. However, we do recommend hiring a plumber if you are not mechanically inclined.

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.

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.


Whats in the box


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

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.
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