Instrument overview: This DI water system produces both 1st-grade DI water (purified water) and 3rd-grade DI water (ultrapure water), with a flow rate of 15 L/hr. The water meets high-purity standards, including RO water conductivity of 0–25 µS/cm and UP water resistivity of 18.2 MΩ·cm, providing reliable quality for laboratory use.