WFI Quality Water is water produced to Water for Injection quality and 0.1 µm filtered at the time of fill. The 200 L standard-configuration bag has a Luer lock sampling port and no dip tube, for process-scale use where bottom draw is not needed.

It is commonly used in bioprocess manufacturing to flush filters, dilute buffer concentrates, and prepare process and formulation solutions at scale. It also serves as a final rinse for equipment and single-use assemblies.