The Circle filters are separated into two replacement filter cycles: the three-filter pack (RF-20) needs to be changed every six months while the RO Membrane filter (RF-40) only needs to be changed every 2 years.
Stage 3: RO MEMBRANE FILTER (RF-40): The RO Membrane filter works by pushing water through a semi-permeable membrane thereby separating H2O molecules from contaminants in the tap water. The powerful RO Membrane filter significantly reduces pollutants such as: heavy metals, cysts, fluoride, arsenic, industrial chemicals and more. Recommended replacement every 24 months.
Brondell water filtration systems are all tested and certified by the Water Quality Association (WQA). Beware of cheap imports and non-certified manufacturer's filtration claims that have not been tested and approved by an authorized agency for water filtration products
- CRYSTAL CLEAR BENEFITS: The reverse osmosis membrane filter separates clean water molecules from contaminants and reduces heavy metals, cysts, fluoride, arsenic, industrial chemicals, and more
- WATER QUALITY ASSOCIATION CERTIFICATION: Holds WQA certification for reduction of 64 contaminants when used with the Circle Reverse Osmosis Under Sink Water Filtration System (certified under NSF/ANSI standards 42, 53, 58, and 372)
- SIMPLE DIY INSTALLATION: The replacement filter can be installed in just a few minutes with a quick and easy twist and seal installation; The change indicator lets you know when a new filter is needed; Includes filter indicator replacement battery
- We design hygiene products that help protect our planet’s essential resources. From water-saving showers and air purifiers to bidets that help reduce toilet paper and energy use, we’re helping you live more sustainably and it feels better already.
- CRYSTAL CLEAR BENEFITS: The reverse osmosis membrane filter separates clean water molecules from contaminants and reduces heavy metals, cysts, fluoride, arsenic, industrial chemicals, and more
- WATER QUALITY ASSOCIATION CERTIFICATION: Holds WQA certification for reduction of 64 contaminants when used with the Circle Reverse Osmosis Under Sink Water Filtration System (certified under NSF/ANSI standards 42, 53, 58, and 372)
- SIMPLE DIY INSTALLATION: The replacement filter can be installed in just a few minutes with a quick and easy twist and seal installation; The change indicator lets you know when a new filter is needed; Includes filter indicator replacement battery
- We design hygiene products that help protect our planet’s essential resources. From water-saving showers and air purifiers to bidets that help reduce toilet paper and energy use, we’re helping you live more sustainably and it feels better already.