1,AC 220V/50Hz 2,5 stage pufification 3,Auto-Flush 4,Hi&Low Pressure Switches 5,Pump 1. This RO ... system is Auto-Flush. 2. There are 5 stage filters, the following table explain each filters. Stage Filter Name Function 1Sediment filter Remove suspended ... and hardness and makes water safe for drinking 5Post carbon filter Improve the taste of the water 3. This Ro water ...