Water Flow Rate This water filter can reach a maximum flow rate of 850-900L per hour, which is related to water pressure and water quality, if the water pressure is less than 0.3mpa, it can not reach 900L per hour. If the water quality is poor and the filter element is not cleaned in time, it will also make the water flow smaller. This stainless steel water filter can be installed and used directly. It is recommended to install this water purifier horizontally. NOTE: This product is an ultrafiltration machine. The filtered water is mineral water. TDS value is only suitable for water purifiers that use RO membrane filtration. It cannot detect the mineral water filtered by the ultrafiltration machine. As long as the water contains minerals will affect the TDS value, and minerals will increase the TDS value.