The Aquatic Life Twist-In Replacement RO Membrane Filter 100 GPD is the replacement for the AquaticLife Twist-In 3-Stage & 4-Stage RO Units. RO The RO membrane should be replaced every 1-2 Years. The RO Membrane reduces impurities known as Total Dissolved Solids (TDS) from the water down to 1/10,000 of a micron, reducing arsenic, lead, parasitic cysts, copper and more. Working Pressure: Minimum 35 PSI, Maximum 80 PSI, Ideal 65 PSI. Flow Rate: 100 GPD. AquaticLife Item# 330375.
