Millipore Corporation offers the new BioPak disposable ultrafiltration cartridge to dispense ultrapure water for up to three months without a loss of flow rate. The cartridge connects to the outlet with any Milli-Q®, Direct-Q® or Synergy® water purification system as a final purification step. The BioPak cartridges increase efficiency and optimize performance for researchers needing precise lab water for cell culture, biochemistry or molecular biology applications.