The Brio reverse osmosis membrane replacement is compatible with Brio under-sink filtration model TROE600COL. Rated at 0.0001 microns, it significantly reduces total dissolved solids like salts, nitrates, calcium, magnesium, as well as heavy metals, including lead and arsenic. Delivering one liter per minute of refreshing hydration and up to 600 gallons a day, it also features an easy twist-and-lock design lets you change the filter in less than 10 seconds. You can count on the Brio reverse osmosis membrane to provide reassuring filtration for 12 to 24 months.