MJSI HYR270 HydroRight Drop-in Dual Flush Converter for $18.80. Here is a screenshot for reference. Shipping is free on orders over $25. If needed, use this Filler Tool to qualify for free shipping. Note the dual flush converter does not fit in every toilet, so make sure your toilet fits the installation requirements. It converts any toilet to a dual flush toilet to save water, replaces the flapper, and requires no tools for installation.