C-TONG GENUINE PARTS ( MINERAL CARTRIDGE ) FOR TASTY WATER.Mineral Cartridges are also known as alkaline filter & is installed after RO Membrane filter, to give soothing & sweet taste to the pure drinking water. This Mineral Filter also makes the water healthy for drinking by increasing the pH value of drinking water to above 7 & imparting essential bio minerals to the drinking water. Enhances PH and Taste of Water Recommended for those suffering from Mineral Deficiency and Acidity problem. The Mineral cartridge can be used as substitute of Post Carbon Filter. - Fits inside most major brand RO systems and Water Purifiers You can install this filter yourself without the help of any technician. This filter is Manufactured through high precision Injection Molding process from Certified Food Grade Plastic and contains filter media of premium quality. Pack Contains - 1 Pcs of Ro Mineral Cartridge Kit Multi Stage