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Okay, here are some high-ranking search terms incorporated into your product description for the "Blue Star SPNU Filter":Blue Star SPNU Filter : High-Density PP Spun Pre-Filters for RO Water PurifiersKeep your Blue Star RO water purifier running efficiently with this set of two SPNU FILTER high-density PP spun filters. These 10-inch pre-filters are expertly designed to effectively remove sediment, particulate matter, and impurities down to 5 microns in size, significantly helping to protect RO membrane and extend the life of your RO system's main membrane. The durable polypropylene construction provides reliable water filtration performance for consistently cleaner water. These replacement filters are compatible with most standard RO water purifiers, making them a practical and essential choice for regular maintenance. The high-density design ensures consistent filtration and optimal performance throughout the filter's service life. Easily install these pre-filters as part of your routine water purifier maintenance to maintain optimal system performance and superior water quality. Perfect for residential RO systems and light commercial RO systems.