Protect your RO water purifier with the Ocean Star 10 x 2.5 Inch 100 Gram Spun Filter Cartridge Pack of 3. Manufactured from premium polypropylene spun fibre, these filters efficiently remove sediment, dust, sand, rust and other suspended impurities before they reach your RO membrane. The standard 10 x 2.5 inch size makes the cartridges compatible with most domestic and commercial RO, UV and UF water purifier systems. This value pack includes 3 high-quality spun cartridges and 1 spanner key, making filter replacement quick and convenient. Regular replacement of the sediment filter helps extend the life of expensive RO membranes, improves purification efficiency and maintains a steady water flow.