The Kinetico K5 Drinking Water Station brings fresh, great tasting water right to your kitchen tap, so reaching for a glass becomes an easy everyday habit. It sits neatly under your sink, runs without electricity, and is built around your water. Unlike most reverse osmosis systems, two of its five cartridge positions can be customized. The result is cleaner, safer water you and your family will want to drink. With Gordon Water as your authorized Kinetico dealer in West Michigan since long before PFAS was a household word, you have a local team that knows your water inside and out.
The Signs
When you own a K5, you know you are doing all you can to provide your family with the highest water quality at the best price.
Add-on cartridges customize the filtration, reducing chloramine, arsenic III, and other contaminants
Two FlexFilter slots take add-on cartridges for what your water test finds: VOC Guard, Chloramine Guard, Arsenic Guard, Perchlorate Guard, Purefecta Guard for bacteria and viruses, and Mineral Plus for taste. That is what makes the K5 different from a fixed under-sink system.
See the add-on cartridges →
Treated water is ready at the faucet with no wait time
A storage tank keeps treated water ready, so filling a pot or a pitcher does not slow to a trickle. The K5 runs on water pressure alone, with no timer, no circuit board and nothing to plug in, so a power outage never touches it.
The K5 is WQA-certified to NSF/ANSI 58 for PFAS reduction, including PFOA and PFOS
WQA has certified the K5 against NSF/ANSI Standards 42, 53 and 58, plus 372 for lead-free materials. Standard 58 covers PFAS reduction, including PFOA and PFOS, along with lead, arsenic V, fluoride, nitrates and dissolved solids.
A built-in meter tracks every gallon and stops the flow when the filters need changing
A mechanical meter counts every gallon and shuts the flow off at 500 gallons, so you change filters when they are actually spent, not on a guess. There is nothing to reset and no light to ignore.
Kinetico backs the K5 with a 10-year warranty.
Kinetico backs the K5 with a 10-year warranty, and Gordon Water installs and services it locally, with the Gordy Care Plan available for annual filter changes and check-ups.
The Fix
Five cartridge positions, one job: the cleanest water your kitchen tap has ever poured. Water moves through a prefilter, two FlexFilter slots you configure for your water, the reverse osmosis membrane, and a final carbon polish. It all runs on water pressure alone, so there is nothing to plug in and a power outage never touches it.
Download the K5 spec sheet (PDF) →Side by side
Pitcher, fridge and faucet filters are carbon only. Carbon improves taste. It does not take out what is dissolved in the water. The K5 pairs carbon with a reverse osmosis membrane, and that is the difference.
| Water issue | Reverse osmosis + carbon (the K5) | Carbon filter only (pitcher, fridge, faucet) |
|---|---|---|
| Chlorine taste and odor | Removes | Reduces |
| Sediment and cloudiness | Removes | Reduces |
| Lead | Removes | Removes some |
| PFAS (PFOA and PFOS) | Removes | Removes some |
| Arsenic V | Removes | Will not remove |
| Fluoride | Removes | Will not remove |
| Nitrates | Removes | Will not remove |
| Dissolved solids (TDS) | Removes | Will not remove |
| Cysts (Giardia, Cryptosporidium) | Removes | Removes some |
| VOCs (solvents, pesticides) | Removes* | Removes some |
| Chloramine | Removes* | Removes some |
| Arsenic III | Removes* | Will not remove |
| Bacteria and viruses | Removes* | Will not remove |
The Systems
The two Flex filter slots are one of the features that set the K5 apart from every other under-sink RO system.
For volatile organic compounds: pesticides, solvents, degreasers, inks and dyes, and fuel-related contamination. This is the cartridge that ships in the standard configuration Kinetico certifies.
For utilities that disinfect with chloramine rather than free chlorine. Chloramine is harder on taste and harder to reduce with carbon alone.
For arsenic III. Worth being precise here: the base K5 is certified for pentavalent arsenic, or arsenic V. Arsenic III is a different form and needs this cartridge, which Kinetico states is not NSF or WQA certified.
For perchlorate, which shows up near certain industrial and defense sites.
Kinetico's microbiological cartridge, rated for bacteria and virus reduction. Worth discussing if you're on a private well with a history of coliform hits.
Adds calcium and magnesium back after the membrane. Purely a taste choice, for people who find demineralized water flat.
Fill out a short form or call us at 800-928-3768. We'll set up a time to visit your home, usually within a few days.
One of our WQA-certified Water Specialists tests your water right at your home and walks you through what's in it, with results explained on the spot.
Based on your results, household size, and budget, we lay out one to three systems that fit your situation and explain the trade-offs in plain language.
Our factory-trained technicians handle the install. After that, we stay your local water team, with service & repair, salt delivery, and maintenance plans like the Gordy Care Plan.
The free on-site test tells us what to configure. If your water doesn't call for any of the add-ons, we'll tell you that too.
Where We Work
We install and service the Kinetico K5 across West Michigan, including:
Why Gordon
WQA-certified Water Specialists who educate instead of pressure
Authorized Kinetico dealer, with the most efficient softeners on the market
Free on-site water testing before any recommendation
Factory-trained installation and service technicians
Highest-rated water treatment company in West Michigan (read our reviews)
Second-generation, family-owned, and locally rooted since 1973
Testimonials
"Terry was very professional and knowledgeable about all of my water systems. The appointment took less than an hour to change the filters and test everything to make sure our system was working properly and safely."
"The team explained our water test results in plain language and recommended exactly what we needed, nothing more. Our water has never been better and the difference in our skin and laundry is obvious."
"Been a customer for years for both our home and our restaurant. Reliable salt delivery, honest service calls, and a local team that actually answers the phone. Highly recommend Gordon Water."
Questions
Get a Quote
Call or submit the form and a member of our team will follow up with pricing and options sized to your home. Not sure which system you need? Ask for a free water test and we'll start there.
