Millipore Milli-Q Progard TL1 Pretreatment Filter Pack PR0GTL0S1 1 ea (4 ea available) New in sealed box. Stored in lab at room temperature since purchase. Lot.No.: F1MB54974 Located in Sweden Shipping by DHL Express to Europe, UK, US and Canada Manufacturer info: sigmaaldrich.com/SE/en/product/mm/pr0gtl0s1 The Progard TL1 Pretreatment Pack removes large particles, organic compounds and free chlorine from tap water, before this water feeds your water purification system. This protects the reverse osmosis (RO) membrane against mineral scaling, organic fouling and chlorine oxidation. Progard TL1 Pretreatment Pack ensures that your system lifetime and performance are optimized. Replacement of consumables, when requested by the system, is key to maintain the system?s performance within specifications. Designed for use with Elix Large, Elix Gulfstream and RiOs Large water purification systems. Removes particles, organics and free chlorine to protect the RO membrane. Protects RO membrane against mineral scaling, organic fouling and chlorine oxidation. Depth filter media exhibits high capacity and optimized retention of colloids. e-Sure RFID tag ensures full traceability and provides instant visibility of pack parameters Silver-impregnated activated carbon reduces free chlorine and provides bacteriostatic protection. Polyphosphate protects against scaling without releasing ions. Replace every 6 months for optimal results.