Leak Proof Twin Flush Cistern is a toilet system designed to save a considerable amount of water to help the environment. The Twin Flush Cistern comes two buttons, one for a full flush and one for half, as required by the user. The Twin Flush Cistern comes in leak proof durable construction that ensures 100% dependable flushing that flushes at any water level. The Leak Proof Twin Flush Cistern is capable of using 5 litres of water per flush.