Direct flow reverse osmosis system works by applying pressure to a water source, pushing the water through a semi-permeable membrane to remove impurities such as minerals, bacteria and even viruses. The system is ideal for use in areas where clean and safe drinking water is scarce. Pre Filter, Counter Top Water Dispenser , Boiling Water Dispenser , House Water Filter System ,Cooler Dispenser . Another great feature of Angel undersink reverse osmosis water purifier is that it comes in a variety of models, ranging in water capacity from 50 GPD to 800 GPD. This makes it ideal for homes of any size, from small apartments to large estates. With a variety of models available, homeowners can choose the system that best suits their needs and budget. The product will supply to all over the world, such as Europe, America, Australia,Canada, Thailand,Belize, Brunei.If you are looking for an effective drinking water purification system to resell, Angel drinking water purification system may be the best option for you.