How to choose the suitable machine before order? A: What's your raw water? B: What's the capacity would you like ? C: How many hours do you need the machine work a day? D: What's the application of purifier water? E: Do you have raw water quality test report?What's your raw water TDS and hardness? F: What is the power supply?(Such as 380V/50HZ,220V/50HZ etc;) Depending on your water purification needs, you can ask our sales for more details and choose the most suitable water purification solution. WEB: 1.qihangmachine.en.alibaba.com 2.http://www.cosmetic-makingmachine.com/