An alternative option to the dual flush valve, this is a complete siphon. This product uses the traditional handle method, whereby the user presses and releases the lever for a full flush, and presses and holds the lever down for a reduced flush. Available in 9" . In order to determine the correct size, the depth of water in the cistern must be obtained.
2 piece units allow replacement of the siphon section in the case of failure without having to remove back nut or break apart close couple WC.