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TANKS & VALVES
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COMPONENTS
WHY YOU NEED ONLISOFT PRO COMBO
Complete Protection
The RKIN OnliSoft Pro Water Treatment System uses a comprehensive approach to filtering water. It removes sediment, filters chemicals, and contaminants in your water supply while preventing hardness build-up throughout your home.
Filters Out Harmful Contaminants
Remove up to 99.6% of chlorine and other contaminants with our whole house water filter system. It has multiple lines of defense against harmful chemicals and pollutants, including:
Taste, Odor, Chlorine, Chloramine, Haloacetic Acids, MTBE & THM's, Herbicides, Pesticides, and many others.
Softer Skin & Healthier Hair
Eliminate contaminants in the water that can be harmful to your body. By filtering chemicals such as chlorine and chloramine, you can avoid the drying effects of chemicals, promoting softer skin and healthier hair.
Better Tasting Food & Water
With our whole house water treatment system, you can savor the purity in the kitchen.
Filtered water enhances not only the water that you drink but also the quality of the food that you eat. Upgrade your cooking by using cleaner and healthier filtered water.
Why Use a Water Softener
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 and 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.
5 STAGES OF ADVANCED WATER TREATMENT
Salt-FREE, Non-Electric, No Need For Drain.
Clears Out Existing Hardness Build Up.
MULTI STAGE CARBON FILTER
Stage 1 - KDF Media
Creates a bacteriostatic environment using copper and zinc alloy which helps with the removal of chlorine and heavy metals.
Stage 2 - Catalytic Activated Coconut Shell Carbon Bed
Designed to remove organic contaminants and disinfectant by-products such as chlorine and chloramines.
Stage 3 - EvenFlow Bed
Innovatively designed to maximize water treatment by substantially increasing contact time with the water filtration media.
STAGE 4 - ZEE PRO SEDIMENT FILTER
Designed to protect the OnliSoft media from degrading performance while
filtering 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.
STAGE 5 - 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.
SALT-FREE VS SALT-BASED WATER SOFTENER
| Water Softener Comparison | RKIN Salt-Based Combo | RKIN OnliSoft Salt-Free Combo |
|---|---|---|
| Salt replenishment is required | Yes | No |
| Drain is required | Yes | No |
| An electric outlet is required | Yes | No |
| Metered Operation for Water and Salt Efficiency | Yes | Not Applicable |
| Bluetooth and Mobile App | Yes | Not Applicable |
INCLUDED PARTS
Carbon and OnliSoft Tanks
ZEE Pro Pre-filter Housing
ZEE Pro Sediment Filter
Sediment Filter Wrench
Bypass Valve (2)
1" MNPT PVC Elbow Fittings (4)
Hose Bib Assembly
Mounting Kit for Pre-filter Housing
OPTIONAL SUPER FLEX KIT FOR 50% FASTER INSTALLATION
Optional RKIN Super Flex Kit makes installation faster and easier.
Eliminates the need to perfectly measure, cut, and glue pipes.
Just place the water system next to the main water line and connect it using quick connects. Some plumbing may be required to ensure the water main is adapted for the water system connection.
- High Flow Capacity
- Made with long-lasting stainless steel
- Quick Connects suitable for 1-inch PEX, CPVC, and Copper
Includes:
- 2 Stainless Steel 24" x 1" Quick Connect Supply Flex Hose
- 2 Stainless Steel 18" x 1" Water Tank Connector Hose
- 2 Zee Pro Filter Housing 1" Nipples
VIDEO REVIEWS
STEP BY STEP INSTALLATION
STEP BY STEP INSTALLATION & WATER TEST
FREQUENTLY ASKED QUESTIONS
Does the RKIN OnliSoft Whole House Water Conditioning System add anything to the water?
No, it doesn't. The OnliSoft Whole House Water Conditioning System filters out impurities from your water, eliminating unwanted tastes and odors, without adding anything to your water. It provides clean, filtered water from every faucet of your home.
When I move, can I take my RKIN OnliSoft Whole House Water Conditioning 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.
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 Pre-filter and replacement media are available here.
Who installs my RKIN OnliSoft Water Conditioning System?
RKIN ships direct from 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. To download the RKIN OnliSoft Pro Manual, please click here.
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.
What is your BBB rating?
We at RKIN are proud to say that we currently have an excellent rating with the Better Business Bureau.
Do you have a technical service help desk?
Yes, RKIN's technical support staff is available by phone at 1-800-803-4551, via 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 an beyond industry standards, each of our products comes with an industry-leading lifetime warranty and an unmatched one-year money-back 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 business day. But, sometimes it might take us up to 3 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.
What if I Have More Questions Or Need Support?
You can always call us at 1-800-803-4551 Mon-Fri: 9AM-5PM EST or submit a request here.
What is the Warranty on the OnliSoft Pro Water Treatment System?
Lifetime Warranty included on Tanks and Parts. Free shipping on warranty replacements.
For more information on our warranty, please visit www.rkin.com/onlisoft-pro-warranty/
You get an unconditional one-year money back guarantee with every OnliSoft Pro whole house water treatment system.
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SPECS
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REPLACEMENT COMPONENTS
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SHIPPING & DELIVERY
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PRICE MATCH GUARANTEE
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RETURN POLICY
OnliSoft Pro Salt-free Whole House Water Treatment System Models: OPX8, OPX9, OPX10, OPX13
| SPECIFICATION | OPX8: 1-3 BATHROOMS | OPX9: 2-5 BATHROOMS | OPX10: 4-6 BATHROOMS | OPX: 7+ BATHROOMS |
|---|---|---|---|---|
| CARBON MEDIA CAPACITY | 500K Gallons or 10 Years | 1 Million Gallons or 10 Years | 1 Million Gallons or 10 Years | 1 Million Gallons or 10 Years |
| ZEE PRO PRE-FILTER REPLACEMENT | Every 12 Months | Every 12 Months | Every 9-12 Months | Every 6-9 Months |
| TANK WIDTH AND HEIGHT WITH HEAD | 8" x 48" | 9" x 52" | 10" x 58" | 13" x 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 |
Click Here To Expand Specs Table
| SPECIFICATION DESCRIPTION | OPX8: 1-3 BATHROOMS | OPX9: 2-5 BATHROOMS | OPX10: 4-6 BATHROOMS | OPX: 7+ BATHROOMS |
|---|---|---|---|---|
| CARBON MEDIA CAPACITY | 500K Gallons or 10 Years | 1 Million Gallons or 10 Years | 1 Million Gallons or 10 Years | 1 Million Gallons or 10 Years |
| ZEE PRO PRE-FILTER REPLACEMENT | Every 12 Months | Every 12 Months | Every 9-12 Months | Every 6-9 Months |
| TANK WIDTH AND HEIGHT WITH HEAD | 8" x 48" | 9" x 52" | 10" x 58" | 13" x 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 |
| OPERATING TEMPERATURES | OPERATING PRESSURE | PH RANGE |
|---|---|---|
| 36°F-120°F | 25-120 PSI | 6-11 |
| OPERATING TEMPERATURES | OPERATING PRESSURE | PH RANGE |
|---|---|---|
| 36°F-120°F | 25-120 PSI | 6-11 |
⚠ IMPORTANT: Before installation, the carbon 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.
If the water being filtered is from a public water supply, it will comply with requirements and your OnliSoft PRO Water Treatment System will substantially improve the water quality.
Your water quality may affect the longevity and replacement frequency of the filters.
ZEE PRO Pre-Filter - Recommended replacement every 6-12 months or as needed.
Carbon Media Replacement - Please refer to the specs for carbon media capacity.
The OnliSoft media is non-absorbent and will work for a lifetime. This means that there are no replacements or maintenance required.
Free standard shipping within US and Canada.
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.
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.
You get an unconditional one-year money back guarantee with every OnliSoft Pro whole house water treatment system.
Lifetime Warranty included on Tanks and Parts. Free shipping on warranty replacements.
For more information on our warranty, please visit www.rkin.com/onlisoft-pro-warranty/
TRANSFORM ORDINARY TAP WATER INTO FILTERED AND HEALTHY WATER
THROUGHOUT YOUR ENTIRE HOME
Salt-Free, non-electric, no need for drain, clears out existing hardness build up.
✔️ Filtered water throughout your entire home
✔️ Showers & baths without chlorine & other disinfection by-products
✔️ Softer skin & healthier hair
✔️ Better tasting water & food
✔️ Protection against hardness build-up
✔️ Ships the same or the next business day
✔️ 1-year money-back guarantee
✔️ Lifetime warranty on tanks & valves
✔️ Made in the USA with certified components
OVER 50% IN FACTORY
DIRECT SAVINGS
100% BEST PRICE
GUARANTEE
EXPERT STAFF
SUPPORT
DESIGNED & BUILT WITH
LOVE IN USA
NEED HELP CHOOSING A WHOLE HOUSE WATER TREATMENT SYSTEM?
NEED HELP CHOOSING A WHOLE HOUSE WATER TREATMENT SYSTEM?
OR
Call us 1-800-803-4551 Monday-Friday 9am-5pm EST
Call us 1-800-803-4551
Monday-Friday 9am-5pm EST
REVIEWS
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United StatesFinally Done
Just to start would like to start giving thank to Mrs.Barbara G for her sincere respond to our questions after several call never did she hesitate to keep us informed and even gave us her reach back number to any of the questions we had in mind amd she was awesome every time,thank you again for amazing work you do Mrs.Barbara G. Just to inform you the service she gave us was amazing and gratitude and not least the equipment she offer us was the best for our home and the delivery was right on the time she said would arrived.thamk you again.ones the equipment arrived I was pretty excited to install but after couple of hycubs not with the unit but with none relate issues today was finally done amd I tell you the system is awesome the quality of the equipment top notch.verry impressive, when installing had a little doubt on the 45 degree connections of the filter were kind of loose amd my thought is going to leak but I tell you it didn't not even a bit.after follimg instructions on how to do it anyone can do this other own if need of some one to hold you something while working it Wil goes faster instalation took me about 3 to 4 hrs after doing my own blue prints of how it was gonna look like and it was finally completed amd thankfull,now is time to enjoy water and will let you know after I do my water testing as soon as get a water testing kit so so far I'm a proud man of a 5 stage Rkin OnliSoft Pro Salt-Free Water Softener and Whole House Carbon Filter,thank you Mrs.Barabara G.
United StatesWater softener
Thanks Barbra if I could give a 6 star I would.very quick service and very friendly again I really really appreciate you thanks
United StatesWhat Customer Sevice should be
Great customer service! Great product! Yves F. Knows how customer service should be and did that throughout my questions and purchase. Even after the purchase his response was super fast. Thanks Yves, I’ll be buying more products! You can’t go wrong with RkIN
United StatesSunday project with Dad and Mom felt the difference in water right away.
Dad and I installed the system in about 4-5 hours. Most of the time was spent digging down into the ground to plumb the optional by-pass. Once the system was operational, mom noticed the difference in water right away. No more chlorine smell while in the shower and water looks so much clearer in the bathtub. Absolutely happy with this system.
United StatesWhole House system is great.
We moved into our new home here in Southern California and after 6 weeks we started to develop calcium rings in the toilets and scale in the showers. We decided to look at whole house systems from RKIN after having such great experience with our countertop ZIP filter. After using the whole house filter system were absolutely thrilled with the quality of the the water in our home.
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