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 aqua, and lasts 12 to 24 months Reverse osmosis membrane replacement filter for Brio Model TROE600PRISM piece count 1.
