Caroma Cosmo II Care Dual Flush Connector Toilet Cistern 235019W uses Smartflush technology to deliver a 4.5/3 litre dual flush toilet suite system. The cistern is an integrated system comprising of cistern and flush fitting connection plate which conceals the flush pipe and water connection. Due to the substantial water saving benefits achieved by the 4 star 4.5/3 litre dual flush system, the matched suites are suitable for multipurpose applications and can be used where authorised for septic installations. The inlet valve is the Quietflow 2 inlet valve which reduces noise during the filling cycle. The dual flush outlet valve is operated by two clearly shaped push buttons which offer the choice of half flush or full flush as required.