A Smarter, Space-Saving Design.
CIRCLE — Reverse Osmosis Under Counter Water Filtration System. Circle revolutionizes the provision of pure drinking water through the utilization of multi-stage filtration and cutting-edge reverse osmosis techniques. It systematically filters water through multiple stages until it reaches the optimal level of purity for consumption. Say goodbye to undesirable elements like lead, chlorine, volatile organic compounds, and more, as you savor water of superior quality without a trace of concern.
Best for
- Households that want superior-quality drinking water without a trace of concern
- Anyone who wants to cut wastewater — patented components contribute a potential wastewater reduction of up to 10 times compared to conventional reverse osmosis water systems
- Kitchens where under-counter space matters

Highlighted Features
Innovation through patented water-conservation technology
Circle incorporates scientifically grounded, patented components that contribute to a reduction in wastewater production.
Exceptional 4-stage filtration for heightened effectiveness
Sediment Filter — aims to eliminate larger particles and sediment in the water, preventing blockages and safeguarding subsequent filters from harm. Pre-Carbon Plus Filter — utilized to eradicate chlorine, specific volatile organic compounds (VOCs), and other organic elements that could impact the water’s flavor and smell. RO Membrane Filter — eliminate a diverse array of contaminants, including dissolved salts, heavy metals, minerals, bacteria, and viruses. Post Carbon Block Filter — designed to enhance the water’s taste by adsorbing any lingering odors and flavors.
Official certification from the Water Quality Association (WQA)
Filtration you can trust, stage after stage.
Thoughtfully crafted, environmentally conscious design
A resounding commitment to sustainable practices, sip after sip.
Installation
- Installation video: watch on YouTube
- Owner’s Manual
- Spec Sheet
- Performance Data Sheet
- Not up to installing it yourself? Taskrabbit is an American online and mobile marketplace that matches freelance labor with local demand, allowing consumers to find immediate help with everyday tasks. Learn more
Frequently asked questions
What does each filter stage do?
The Sediment Filter eliminates larger particles and sediment; the Pre-Carbon Plus Filter eradicates chlorine, VOCs and other organic elements; the RO Membrane Filter eliminates dissolved salts, heavy metals, minerals, bacteria and viruses; the Post Carbon Block Filter enhances taste by adsorbing lingering odors and flavors.
How much wastewater does it save?
Circle incorporates scientifically grounded, patented components that contribute to a reduction in wastewater production, with potential wastewater reduction of up to 10 times compared to conventional reverse osmosis water systems.


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