Millipore ROPAK Compact Water System Pre Treatment Filter CPR0P0402 1 ea (2 ea available) New in opened box. Stored in lab at room temperature since purchase. Lot.No.: F3EA04824 Located in Sweden Shipping by DHL Express to Europe, UK, US and Canada Manufacturer info: sigmaaldrich.com/SE/en/product/mm/cpr0p0402 ROPAK RO System Double-sided Pretreatment Pack efficiently removes most of the large particles, organic compounds, and chlorine from tap water to protect the RO membranes. For use with AFS, Milli-RO, Milli-RX and Milli-U systems. Purification technology involves the use of activated carbon, anti-scaling, and RO membranes.