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- Transforms ordinary tap water into filtered, healthy spring-like water throughout your entire home.Â
- Filters sediment, chlorine, and other disinfection by-products.
- Protects appliances and plumbing from harmful hardness build-up.Â
- Certified components.
- 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.
We would love to answer any questions you may have about whole house water systems. Have one of our RKIN experts explain the various water filter options available to you and get recommendations on what type and size of the water filter system is best suited for your household needs.
LIFETIME WARRANTY ON
TANKS & VALVES
MADE USING CERTIFIED COMPONENTS
OVER 60% IN FACTORY
DIRECT SAVINGS
DESIGNED & BUILT WITH
LOVE IN USA
SPRING-LIKE WATER FROM EVERY FAUCET
Complete Protection
The RKIN 5 Stage 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, Sulfur, 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.
Prevents Hardness Build-up
Extend the life of your plumbing and household appliances by preventing and reversing scale build-up. Our OnliSoft Salt-Free water treatment system removes harmful minerals, which cause scale and corrosion, without the use of harsh chemicals.
Comes Install-Ready
All our products come install-ready with minimal assembly required.
Manufactured in Florida, RKIN products are made to be installed easily without needing professional help. However, we do recommend hiring a plumber if you are not mechanically inclined.
WHY USE A WATER CONDITIONER
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.
5 STAGES OF ADVANCED FILTRATION
STAGE 1: PRE-FILTER ZEE PRO
Filters out sand, silt, clay, and any other sediment.
Unlike competitors' water treatment systems, this sediment pre-filter comes equipped with technology that is specifically designed to protect the OnliSoft filters from degrading performance caused by alum, silicates, and phosphates commonly found in city water. This process ensures long-lasting optimal performance of your RKIN water treatment system.
High Quality Filter Housing with Microban technology will provide years of pain-free filter replacements.
STAGES 2, 3 & 4: COMBO CARBON FILTER
Stage 2 - KDF
Removes chlorine and heavy metals using a copper/zinc alloy media.
Stage 3 - Coconut Shell Carbon Bed
Designed & processed to remove organic contaminants.
Stage 4 - EvenFlow Bed
The EvenFlow Bed is innovatively designed to eliminate channeling of the filter media while producing more contact time to maximize contaminant filtration.
STAGE 5: ONLISOFT SALT-FREE WATER CONDITIONER
Naturally neutralizes chemicals that cause water hardness through precipitation and reduction of the water's surface tension.
- Salt FREE
Maintenance FREE
Non Electric Operation
No Need For Drain With Additional Plumbing
Clears Out Existing Hardness Build Up Overtime - The OnliSoft media is non-absorbent. It will work for a lifetime and doesn't require replacements or maintenance.
COMPLETE PARTS LIST
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
VIDEO REVIEWS
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 hard molecules into harmless minerals that no longer stick to the surfaces of your pipes and appliances. It accomplishes this without adding anything to the water, such as salt or chemicals
Here's how it works: The OnliSoft media attracts the hardness molecules present in your water and makes it cling to the surfaces of the media. Once these microscopic particles accumulate and reach a certain size, they seperate from the OnliSoft media and flow through the plumbing and appliances without sticking to them.
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 Description | OPX8 | OPX9 | OPX10 | OPX13 |
|---|---|---|---|---|
| Bathrooms | 1-3 | 2-5 | 4-6 | 7+ |
| Carbon Media Capacity | 500K Gallons or 5 Years | 1 Million Gallons or 5 Years | 1 Million Gallons or 5 Years | 1 Million Gallons or 5 Years |
| ZEE PRO Pre-Filter Replacement | Every 6-9 Months | Every 6 Months | Every 6 Months | Every 6 Months |
| Tank Width | 8" | 9" | 10" | 13" |
| Tank Height with Head | 48" | 52" | 58" | 58" |
| Connection Size | 1" | 1" | 1" | 1" |
| Operating Temperatures | 36°F-120°F | 36°F-120°F | 36°F-120°F | 36°F-120°F |
| Operating Pressure | 25-80 PSI | 25-80 PSI | 25-80 PSI | 25-80 PSI |
| 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 |
| pH Range | 6-11 | 6-11 | 6-11 | 6-11 |
âš IMPORTANT: Before installation, the carbon media inside the tank needs to be soaked in water for a MINIMUM of 2 days.
âš 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 Prefilter - Recommended replacement every 6 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/
- Reviews
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United StatesWe started with the counter top water filter from RKIN and soon installed the whole house system. Big improvement in our water. Shipment on time but received broken part that RKIN replaced with overnight shipment. Installation was easy with step by step directions. RKIN was available by phone or e-mail to answer any questions or resolve any problems. I recommend this product.
United StatesInstalled this unit all by myself. Tank jackets are a nice touch to keep the tanks protected from the Florida sun.
This system doesn’t require any salt. Finally chlorine free water for showers and baths for grandkids. Our son in law installed it along with the undersink filter we got from this company. Highly recommend.
Had this system installed over a year ago. No problems at all. Also recently replaced our old undersink system with one from RKIN. Good