... open and close, non-discharge.2. Manual functionPress the manual button at any time, instant regeneration.3. Keyboard lockingIf there ... dynamic color display screen, bright and visual5. Single tank control valve, no water discharge when regeneration6. Double operate timing mode ( ... water filter, RO and UF membrane housing, RO system, Accessories(valve, distributor, tank head, etc.) We have 7 years OEM ...