OP1L Certified Whole House Lead, Cyst, PFOA, and PFOS Water Filter System

$2,425.00 $2,771.00

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Water System OP1L Water Filter Salt-Free Conditioner Combo Water Softener Combo

Size 1-3 Bathrooms 4+ Bathrooms

Not sure which size fits your home?Free 30-min consult with a water specialist

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1-Year Satisfaction Guarantee

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Enjoy filtered water throughout your entire home that tastes better and makes your food taste better too

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

Get peace of mind with our fast shipping, 1-year satisfaction guarantee and lifetime warranty

Stop scale, smells, and stains - talk to a water pro and get your best‑fit system.

In 30 minutes, an RKIN Whole Home specialist will review your water, compare options, and give you a clear recommendation with pricing and installation options - zero pressure, no obligation.

What You Get:

Clarity
Exact model, estimated costs, DIY vs. pro install guidance.
Diagnosis
City or well - identify the real cause (scale, iron, sulfur, chlorine).
Confidence
Straight answers on maintenance, warranties, and timelines.

Schedule my 30‑min consultation

Prefer to talk now? Call 1‑800‑803‑4551 (Mon–Fri, 9 AM–5 PM EST)

RKIN free whole house water system consultation

Forever Chemicals in your water?

How Lead Affects Adults

There is no safe level of lead for the human body, and unlike other metals, it has no useful biological function. Even low concentrations of lead in the water can cause a significant increase in blood lead levels, and any damage is irreversible.

How Lead Affects Children

Lead is a potent neurotoxin, and it has significant effects on childhood health and development. The Centers for Disease Control and Prevention states that lead exposure can affect nearly every system in a child's body, inhibiting the growth of both physical and mental abilities.

Filter Housing
0.5 Micron Cartridge
Digital Notification Head
Bypass Valve
1" MNPT Fittings
Vertical Elbows
Drain Valve Assembly
Straight Connector Extension
AC Adapter
O-ring Lubricant
Installation and Product Manual

Filter Housing
0.5 Micron Cartridge
Digital Notification Head
Bypass Valve
1" MNPT Fittings
Vertical Elbows
Drain Valve Assembly
Straight Connector Extension
AC Adapter
O-ring Lubricant
Installation and Product Manual

Lead in the water supply

Eighteen million Americans live in areas where the water quality is below the standards put forth by law. According to a new report by CNN, hardly anything is being done to correct the issue. Children affected by lead poisoning can have learning and behavioral problems, hyperactivity, slow growth, and hearing loss. Symptoms like head and stomach aches, fatigue, and low iron deficiencies are often mistaken for other illnesses. The only way to properly diagnose lead poisoning is through a blood test. According to The American Academy of Pediatrics, there are no effective medical treatments for lead poisoning and that prevention of exposure is critical. Moreover, the U.S. Council Of Environmental Quality states that the risk of developing cancer is 93% higher in people who drink or are otherwise exposed to chlorinated water. Chlorine is a potential health hazard to both children and adults.

What are PFOS and PFOA?

PFOS and PFOA are human-made compounds that do not occur naturally in the environment. They are fluorinated compounds that repel oil and water. PFOS and PFOA are used in a variety of industrial and consumer products, such as carpet and clothing treatments and firefighting foams. PFOS and PFOA are the two PFASs that are being produced in the largest amounts within the United States. They are extremely persistent in the environment and are resistant to most chemicals and microbial conventional treatment technologies. They are known to bioaccumulate in humans and wildlife.

How do you get exposed to PFOS and PFOA?

PFOS and PFOA are readily absorbed through oral exposure. Potential ways of exposure include ingestion of food and water, use of consumer products or inhalation of particulate matter containing PFAS. PFOA and PFOS have been found in drinking water supplies, typically associated with industrial use, manufacturing locations, or disposal. The EPA has not issued a Maximum Contaminant Level (MCL) for drinking water.

What are the health effects of PFOS and PFOA?

Human Epidemiological studies found links between PFOA exposure and high cholesterol, increased liver enzymes, thyroid disorders, pregnancy-induced hypertension, decreased vaccination response, preeclampsia, and cancer. Human epidemiological research found associations between PFOS exposure and high cholesterol and adverse reproductive and developmental effects.

Soluble/Ionic lead

Invisible, odorless, and tasteless, soluble/ionic lead requires a chemical removal process to be eliminated from the water.

RKIN binders produce a chemical reaction with soluble lead, which creates an ionic bond, kinetically removing lead from the water.

Particulate leadSoluble leadFiltered water

Granular and similar in size to tiny grains of sand, particulate lead … Invisible, odorless, and tasteless, soluble/ionic lead …
RKIN's lead filter works at a 0.5-micron filtration level and is specifically engineered to remove lead particles from the water physically.
RKIN binders produce a chemical reaction with soluble lead, which creates an ionic bond, kinetically removing lead from the water.
The digital head tracks filter life.

Expand all stepsCollapse all steps

Eliminates 99.62% of Lead

The RKIN Whole House Lead Filter effectively removes both particulate and soluble lead from your water. When service lines that contain lead corrode, lead can enter into your water supply and contaminate your drinking water. This situation becomes more likely in areas where the water has low mineral content or high acidity, which corrodes fixtures and pipes.

Eliminates PFOA and PFOS

Our RKIN Whole House Lead Filtration system effectively removes chemicals such as PFOA/PFOS at the entry point of the water supply of your home, business or restaurant. The chemicals are bio-permanent, are resistant to direct oxidation, and do not break down naturally in the environment or the human body. Studies suggest that exposure to the chemicals may lead to cancer.

Removes Giardia and Crypto

The RKIN Whole House Lead Filtration system removes >99.95% of Giardia & Cryptosporidium. These waterborne parasites, common in drinking and recreational waters, can cause diarrheal disease, nausea and stomach cramps. Microbial Cysts are very resistant to chlorine-based disinfectants, so they must be filtered out of the water supply.

Removes Chlorine and Chloramine

Our RKIN Whole House Lead Filtration system removes >90% of Chlorine & >85% of Chloramine. These disinfectants in the water, added during the municipal water treatment process, can have adverse effects on your health. The most harmful exposure is through inhalation and skin absorption of steam in a shower.

Easy to understand filter life and replacement notifications

Easy filter replacements with no tools required

Why Use a Water Conditioner

The mineral build-up, or scale, can occur in plumbing and household appliances when 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 pipe results in scale build-up. This can gradually close up the line and lower your water pressure.

Salt-Free Onlisoft Water Softener Combo

OnliSoft is a maintenance-free 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.

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

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.

Salt-Based Water Softener Combo

Soft water not only delivers greater washing power but it also reduces the amount of soap you need to use by up to 70%. In fact, the Bureau of Statistics found that between 17 and 20.8 cents of every dollar are spent on cleaning products. Soft water can reduce that bill by up to 65%. It can also eliminate extra rinse cycles and hot water. Plus, using less detergent, household cleaners, and chemicals is better for the environment.

Single Tank Super Flex Installation Kit for Whole House Water Treatment System

$250.00 CAD $207.00 CAD

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...

View Full Details

Step-by-step DIY install of the RKIN Water Softener System (14 min).

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.

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?

Contact customer support.

OP1L Lead, Cyst, PFOA, and PFOS Replacement Filter Cartridge

~~Regular price $739.00 CAD~~ $591.00 CAD Buy Now

Specs

RKIN OP1L Certified Whole House Lead, Cyst, PFOA, and PFOS Treatment System Manual

OP1L Cartridge Replacement

OP1L NSF 53 Certification for Cyst, Lead, PFOA/PFOS

Onlisoft Pro Salt-Free Whole House Water Treatment System Manual

RKIN Water Softener Manual

RKIN Water Softener Programming Guide

⚠ IMPORTANT: Before installation, the optional 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 the RKIN customer service representative first.

If the water being filtered is from a public water supply, it will comply with requirements, and RKIN Water Treatment System will substantially improve the water quality.

Whole House Lead, Cyst, PFOA, and PFOS Filter RKIN Water System
System	OP1L
Bathrooms	1-3
Rated Filter Capacity	100K Gallons
Tank Width	8"
Tank Height With Head	40"
Connection Size	1"
Flow Rate	4.51 GPM / 8 GPM Peak
Filtration Level	0.5 Microns
Lead Filtration Performance	99.62% Lead Reduction
PFOA/PFOS Filtration Performance	97.9% PFOA/PFOS Reduction
Chlorine Filtration Performance	>90% Chlorine Reduction
Chloramine Filtration Performance	>85% Chloramine Reduction

Salt-Free Conditioner RKIN Saltless System Models
Water Conditioner	OS8: 1-3 Bathrooms	OS9: 2-5 Bathrooms
Zee Pro Pre-Filter Replacement	Every 12 Months	Every 12 Months
Tank Width	8"	9"
Tank Height With Head	48"	52"
Connection Size	1"	1"
Flow Rate	9 GPM Service / 12 GPM Peak	11 GPM Service / 17 GPM Peak

Salt-Based RKIN Water Softener Models
Water Softener	WS9	WS10	WS16
Bathrooms	1-3	4+	6+
Grain Capacity	32K	48K	120K
Tank Width	9"	10"	16"
Tank Height With Head	57"	63"	63"
Connection Size	1"	1"	1.25"
Flow Rate	11 GPM	13 GPM	34 GPM

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

Operating Temperatures	Operating Pressure	pH Range
36°F-120°F	25-80 PSI	6.5-10

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. Sometimes shipping can take up to 5 business days, and some deliveries, including international orders, can take 7–14 business days. The whole home systems are usually shipped via UPS ground or Palletized Freight, depending on the water system type and your location.

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.