Brio Reverse Osmosis Membrane Replacement Filter for Brio Model TROE600COL

Premium filtration: the semi-permeable membrane is rated at 0.0001 microns Contaminant reduction: meticulously filters out total dissolved solids like salts, nitrates, and heavy metals 600 gallons per day: delivers up to 600 gallons per day of purified water, and lasts 12 to 24 months