Ultra Watech Systems Reversa Osmosis water storage & delivery.Water production speed is really slow in Reverse Osmosis membranes.; a storage tank is needed for preparing enough quantity water. Ultra watech tanks use stainless steel connection and patented leaking protection, Diaphragm specially flow design for assuring water flow with a steady speed. For antirust, tanks are highly rust resistant durable baked epoxy coating finish. Tanks are proved by NSF 58 drinking water standrads.