K5 Drinking Water Station®
Kinetico’s customizable, tank-based reverse osmosis system, now with a VOC filter as standard.
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Cleaner water. Smarter living. Fresh, filtered water without the bulky tank. The Kinetico HYDRO® ECO™ delivers better-tasting water with a space-saving tankless design, smart system feedback and built-in leak protection.


Tested and certified by WQA against NSF/ANSI 42, 53, 58 and 372 for the claims on its performance data sheet, including lead, fluoride, total dissolved solids and chlorine taste and odor.
Continuous filtered water on demand, with less water waste than many traditional reverse osmosis systems.

Lights on both the faucet and the system show system status and filter life at a glance.
Continuous monitoring, audible alerts and automatic shutoff add another layer of protection.
With no storage tank, the HYDRO® ECO™ leaves far more room under the sink than a tank-based system, and there is no waiting for a tank to refill.
It suits modern kitchens, smaller spaces and efficiency-minded households. The faucet comes in stainless steel, matte black or chrome.

| System type | Tankless, direct-flow reverse osmosis. Electric, with smart LED feedback. |
|---|---|
| Models | HYDRO® ECO™ 600 GPD and 800 GPD. |
| Maintenance | Quick-change filters and automatic maintenance cycles. Pre and post filter: 12 months or 950 gallons. RO membrane: 24 months or 1,900 gallons. |
| Faucet finishes | Stainless steel, matte black and chrome. |
| Warranty | Two-year limited warranty on all components, including the faucet. |
| Installation | Professionally installed by Cardinal Water Solutions, who will test your water, confirm the right solution and provide ongoing service. |
Schedule a free water test today
Fill out the form and Cardinal Water Solutions, your local Kinetico expert, will call to set a time for your free, in-home water test.
Your request is in. Cardinal Water Solutions will call you to set a time for your free water test. If it is easier, call us at (614) 555-0100.
Unlike the K5, the HYDRO® ECO™ has no storage tank, which saves space and supplies filtered water as you draw it. The K5 is non-electric and offers the widest choice of filters. Your expert will help you weigh the two for your water and your kitchen.
Talk with your local Kinetico expert, get a quick quote, or schedule your free water test.
A water test and a conversation with your local expert will show which system fits your water.
Kinetico’s customizable, tank-based reverse osmosis system, now with a VOC filter as standard.
Learn MoreKinetico’s most economical reverse osmosis system, with three stages and non-electric operation.
Learn MoreA compact under-sink filter for taste and odor, with a filter life indicator and its own faucet.
Learn MoreCarbon and ultrafiltration technology, certified for PFOS and PFOA reduction.
Learn MoreA direct-flow, or tankless, system treats water as it comes in and sends it straight to the faucet, instead of filling a storage tank first.
Reverse osmosis systems are designed to reduce a wide range of drinking water contaminants, and every Kinetico system lists its certified claims on its performance data sheet. A water test shows which contaminants are in your water, so the system can be matched to them.
A tank-based system such as the K5 fills a small storage tank so filtered water is ready when you open the faucet. A direct-flow system such as the HYDRO® ECO™ treats water as it is drawn, with no storage tank under the sink.
It depends on your water, your usage and the system. As a general guide, Kinetico suggests changing pre- and post-filters about once a year and checking the membrane every year. Cardinal Water Solutions can schedule filter changes for you.
No. Kinetico notes that replacement cartridges bought online are not approved or certified for use with Kinetico products, may not perform to specification, and void your product warranty. Genuine cartridges come from your local Kinetico dealer.
© 2026 Cardinal Water Solutions. Authorized, Independent Kinetico Dealer. Kinetico and the Kinetico logo are trademarks of Kinetico Incorporated.