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Authorized Dealer | Free Shipping | No Sales Tax (Besides NY)
Authorized Dealer | Free Shipping | No Sales Tax (Besides NY)

Brondell Circle Reverse Osmosis Water Filtration System

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Original price $843.75
Original price $843.75 - Original price $843.75
Original price $843.75
Current price $449.99
$449.99 - $449.99
Current price $449.99

Free Shipping. No Sales Tax.

This sleek, high-capacity system contains patented water-saving technology that makes the Circle up to 10 times more efficient than conventional reverse osmosis systems. Over the life of the product, the Circle pays for itself in water savings compared to traditional RO.

Its unique flexible reservoir and patented Smart Valve substantially reduce wastewater by eliminating back pressure—which is the biggest source of waste in RO systems.

The Circle's surprisingly small footprint leaves plenty of space under your counter and is easy to install and maintain. The Circle is an elegant, efficient reverse osmosis system for the modern, sustainable home

Smart Valve

This patented technology eliminates back pressure to make the Circle up to 10 times more efficient than traditional reverse osmosis systems, saving water and money.

Flexible Reservoir

Working together with the Smart Valve, this system expands and contracts to provide consistent flow rates, improving overall efficiency without using pumps or electricity.

Auto RO Filter Flushing

The system automatically flushes the RO membrane, significantly extending the life of the filter to two years—so you don't have to buy filters as often!

Four-Stage Filtration

Four separate filters work together to deliver maximum filtration. The Circle is WQA Gold Seal certified for trusted performance.

Rapid Refill Rate

In addition to saving water and money, the Circle's unique technology allows the system to refill in about half the time of a traditional RO system.

Space-Saving Compact Design

The reservoir and filters are contained within a single, sleek case, taking up less space under your counter.

Designer Faucet

This elegant chrome faucet includes an integrated LED filter change indicator that gently reminds you to replace your filters.

Why are other RO systems so wasteful?

In most households, conventional RO systems consistently operate at their lowest level of efficiency, wasting up to 24 gallons of water for every gallon of filtered water produced. How? We all drink water one glass at a time. When a glass of water is drawn from a traditional RO system, the system will then try to 'top off' the reservoir. Because significant back pressure has built up in the almost-full reservoir, it is difficult for water to enter. Instead, gallons of water are simply pushed back down the drain before a single gallon is produced for drinking. Thanks to the Circle's innovative features, this back pressure is no longer an issue—which is why the Circle is up to 10 times more efficient!


The RC100 is tested and certified to NSF/ANSI 42, 53 and 58 for the reduction of aesthetic chlorine, taste and odor, cyst, VOCs, fluoride, pentavalent arsenic, barium, radium 226/228, cadmium, hexavalent chromium, trivalent chromium, lead, copper, selenium and TDS as verified and substantiated by test data. The RC100 conforms to NSF/ANSI 372 for low lead compliance.

Downloads and Specifications

Owner's Manual

Spec Sheets

Performance Data Sheet


Brondell Processing & Shipping 

Most US orders ship from our warehouse in Bolingbrook, IL and typically ship via UPS or FedEx Ground although some items may ship via other methods or from our San Francisco headquarters. We will process all orders as quickly as possible and within 1 to 3 business days as processing currently takes a bit longer.  After order processing is complete, standard shipping may take from 1-6 business days for delivery.

 We provide the tracking information once the product has shipped so you will always know the status of your order.

Please be aware that your tracking number may not immediately be valid or show any movement on the shipment.  Sometimes UPS or Fedex may only show a “label created” status at the early stages of the shipment.  This is normal and the tracking status will usually update within 48-72 hours once the shipment is scanned and updated in their system. If it is a weekend, then please wait until Monday to check the tracking number for status update. If your tracking status has not changed in 4 - 5 business days from, please contact us and we'll be happy to assist in tracking your order. 

Brondell Returns

Due to the hygienic nature of these products, Brondell can only accept customer returns on Swash Bidet Seats, LumaWarm toilet seats, and bidet products that are unopened, unused, and re-sellable.
Customer returns to Brondell will incur a 10% restocking and handling fee to offset our shipping, handling, warehouse, and re-boxing costs. Products that are used or in un-sellable condition are subject to additional fees and/or non-credit for returned merchandise. Any returns must be initiated by customer within 30 days of purchase date.

Brondell will not accept for credit any customer returns on Swash bidet seats, LumaWarm toilet seats, or bidet attachments and bidet products that have been installed and/or used in any manner.
For Warranty service, customers should contact Brondell directly for repair and/or replacement of any defective merchandise.

All other non-hygienic products:

Customer returns to Brondell will incur a 10% restocking and handling fee to offset our shipping, handling, warehouse, and re-boxing costs. Products must be in new and unused condition with original packaging intact. Products that are not in new and re-sellable condition are subject to additional fees and/or non-credit for returned merchandise. H2O+ water filtration products including filters that have been used may not be returned as once water has been run through the filter, they are not re-sellable.

Customer Reviews

Based on 1 review
great product

easy to install, sleek, and fits nicely under the sink. Shipping was less than 2 weeks. Thank you!