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Brondell H2O+ Capella Reverse Osmosis Undercounter Water Filtration System

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Brondell H2O+ Capella Reverse Osmosis Undercounter Water Filtration System

Featuring the Water Quality Association (WQA) Gold Seal, Brondell's Capella Reverse Osmosis Under Counter Water Filter System delivers powerful industrial performance for your home or office. It is certified to reduce 86 harmful contaminants found in your drinking water and is backed by a two-year warranty. We believe that Capella's 300-gallon rated capacity and 1:1 wastewater ratio make it the safest and most efficient RO system we've ever built.

Changing your filters is a breeze with our three-stage filtration system, which features a "Twist and Seal" design. Backflow is prevented by our chrome Air Gap Faucet with Integrated LED Filter Change Indicator, and the straightforward LED indicator tells you when it's time to change your filters.

It comes with everything you need to easily install it under your kitchen counter, including a screwdriver and a screwdriver bit. You don't have the necessary tools or time. Installation options are available from Brondell in a range of configurations. Drinking filtered water from the Capella reduces your reliance on single-use plastic bottles, so reducing your carbon footprint as a result.


1st Stage: Activated Carbon Filter

The Activated Carbon Plus filter reduces particulate materials such as sand, rust, and fine particles from the water supply. This first stage also acts as a pre-filter protecting and extending the life of the following filters. This filter has a 6-month lifespan.

2nd Stage: E2RO Membrane Filter

The Eco-Efficient Reverse Osmosis Membrane filter works by pushing water through a semipermeable membrane, thereby separating water molecules from contaminants in tap water. The powerful E2RO Membrane significantly reduces pollutants such as heavy metals, cysts, fluoride, arsenic, industrial chemicals, and more. With its unique flow structure, the E2RO Membrane also utilizes less feed water and is more efficient than traditional RO filters. Eco-Efficient RO membrane contributes to a more sustainable environment through less water consumption and waste. Patented structure produces a higher recovery rate (wastewater 50% & drinking water 50%). This filter has a 24-month lifespan.

3rd Stage: Carbon Block Filter

The Carbon Block filter is the final stage in the filtration process which further reduces any lingering water contaminants such as chlorine and volatile organic compounds (VOCs), improving the overall taste and odor of the dispensed water. This filter has a 6-month lifespan.


  • WQA Gold Seal Certified to filter 86 contaminants including emerging contaminants other filters miss like lead, pharmaceuticals, fluoride, and more.
  • Up to 20x more efficient than other RO systems
  • 1:1 wastewater, saving water and money
  • Air Gap Faucet with LED Filter Change Indicator reminds you when it is time to change filters


Model / SKU: RC250

Installation: Undercounter

Activated Carbon Plus Filter & Carbon Block Filter (RF-30): 6 months/300 gallons

Eco-Ecient Reverse Osmosis (E2RO) Membrane Filter: 24 months/300 gallons

Tank Capacity: 3.2 Gallons

Dimensions: 13.5"L x 3.75"W x 13.5"H (assembled filters & hanger)-14.5"H x 8.5"D (tank with stand) 

Net Weight: 11.4 lbs

Min/Max Operating Pressure: 35 - 100 psi (241 kPa - 689 kPa)

Min/Max Water Feed Temp: 39°- 100°F (4° - 38°C)

Faucet Flow Rate: 0.26 – 0.37 gallons per minute (gpm) at incoming water pressure of 35–100 psi

Rated Service Flow: 0.5 gallons per minute (gpm)


1 x Brondell H2O+ Capella Reverse Osmosis Undercounter Water Filtration System

1 x Filter Head Connector Assembly

3 x Filters: Activated Carbon Plus Filter, E2RO Membrane Filter, Carbon Block Filter

1 x Air Gap Faucet with LED Indicator & 1/4" Blue Tubing

1 x Water Supply T-Valve with Rubber Washer (3/8” connection)

1 x T-Valve Adapters with Rubber Washers (3/8” to 1/2”)

1 x 1/4” Water Supply Tubing (White

1 x 3/8” Drain Tubing (Black)

1 x 1/4" Brine Input Tubing (Orange) 

1 x Teflon Tape

1 x Drain Clamp

2 x Mounting Screws

1 x Tank Ball Valve

1 x Reverse Osmosis Pressurized Tank

1 x Tank Stand

1 x Filter Change Reminder Sticker

1 x 1 Year Warranty

1 x User Manual