SAY 4G RO Water Pressure Tank allows you store large volume of drinking water for future use that comes from the house of SAY. It has a bladder is a balloon inside a tank that fills with water when there is pressure that is greater than that already in the bladder. A check valve stops the water from flowing backwards and reserves the water and pressure for use by the device it is feeding. This unique design also eliminates the need for a pump, as the bladder will act as a pump that uses no power. valve core adopts the anti-high pressure material and installs additional sealing components,so the gas tightness is good ; Resistance of high voltage and it will not burst at the highest voltage of 2 MP,which ensures that the clients can use it at ease. Good quality : The outside barrel adopts the imported and modified PP raw materials,and the rubber pnumatic bag adopts the imported butyl rubber,which live up to the various indicators. This item is sure to look appealing as well in your kitchen premises.