Circle Reverse Osmosis Water Filtration System

Score: 8.9/10 | The Brondell Circle is the most advanced residential RO system we have tested. Tankless design eliminates the bulky storage tank, WiFi monitoring tracks filter life, and 2:1 efficiency cuts water waste by 50% versus traditional RO.

The Water Quality Association Gold Seal is equivalent to or exceeding NSF certification. Third-party testing confirms performance claims.

RO membrane removes virtually everything:

• 99% PFAS (forever chemicals)
• 99% Lead
• 95% Fluoride
• 99% Arsenic
• 99% TDS reduction

1. Sediment pre-filter
2. Carbon block for chlorine
3. RO membrane (0.0001 micron)
4. Post-carbon polishing

RO is the only home technology that effectively removes fluoride, arsenic, and chromium-6. For families in affected areas, this matters.

Traditional RO stores filtered water in a pressurized tank (typically 3-4 gallons). The Circle produces water on-demand without storage, eliminating tank maintenance and contamination concerns.

The Circle wastes only 1 gallon for every 2 gallons of purified water. Traditional RO wastes 3-4 gallons per purified gallon. This efficiency addresses RO's biggest environmental criticism.

400 gallons per day far exceeds residential needs - you will never wait for water.

The Brondell app tracks filter life and water quality in real-time. Receive alerts when replacement is needed - no guessing.

Premium pricing for premium technology. Comparable to high-end traditional RO systems.

Filter replacement every 6-12 months depending on usage. Significantly lower than traditional RO filter costs.

The 2:1 ratio saves 500+ gallons of water annually versus 4:1 traditional RO. At typical water rates, that is $50-100/year in savings.

The Brondell Circle is the best RO system for tech-forward families wanting comprehensive contaminant removal without traditional RO drawbacks. Tankless design, WiFi monitoring, and 2:1 efficiency justify the premium price.

Score: 8.9/10 | The Brondell Circle is the most advanced residential RO system we have tested. Tankless design eliminates the bulky storage tank, WiFi monitoring tracks filter life, and 2:1 efficiency cuts water waste by 50% versus traditional RO.

The Water Quality Association Gold Seal is equivalent to or exceeding NSF certification. Third-party testing confirms performance claims.

RO membrane removes virtually everything:

• 99% PFAS (forever chemicals)
• 99% Lead
• 95% Fluoride
• 99% Arsenic
• 99% TDS reduction

1. Sediment pre-filter
2. Carbon block for chlorine
3. RO membrane (0.0001 micron)
4. Post-carbon polishing

RO is the only home technology that effectively removes fluoride, arsenic, and chromium-6. For families in affected areas, this matters.

Traditional RO stores filtered water in a pressurized tank (typically 3-4 gallons). The Circle produces water on-demand without storage, eliminating tank maintenance and contamination concerns.

The Circle wastes only 1 gallon for every 2 gallons of purified water. Traditional RO wastes 3-4 gallons per purified gallon. This efficiency addresses RO's biggest environmental criticism.

400 gallons per day far exceeds residential needs - you will never wait for water.

The Brondell app tracks filter life and water quality in real-time. Receive alerts when replacement is needed - no guessing.

Premium pricing for premium technology. Comparable to high-end traditional RO systems.

Filter replacement every 6-12 months depending on usage. Significantly lower than traditional RO filter costs.

The 2:1 ratio saves 500+ gallons of water annually versus 4:1 traditional RO. At typical water rates, that is $50-100/year in savings.

The Brondell Circle is the best RO system for tech-forward families wanting comprehensive contaminant removal without traditional RO drawbacks. Tankless design, WiFi monitoring, and 2:1 efficiency justify the premium price.