One Reverse Osmosis Membrane (stage 2) replacement for the AQ-RO-3 OptimH2O Reverse Osmosis Drinking Water System.
RO Membrane should be replaced annually based on water quality and usage for optimal filter effectiveness.
反滲透活性炭濾水器第二級(反滲透膜)替換濾筒。反滲透膜濾筒應每年更換,視當地水質而增加更換頻率。