Pearl Water Technologies’ RO Sediment Filter (Classic) is designed as the essential first line of defense in your RO system, capturing large particles like rust, sand, and dirt to protect downstream components. A 5‑micron polypropylene cartridge, it helps maintain steady water flow and prolong the life of finer filters and the RO membrane. A pack of three such 10″ filters is priced at around ₹599 (~₹200 per cartridge) on Amazon India visit us https://pearlwater.in/domestic-sediment-filter