Zone Industry Corp. Dual Flush Valve, Push Button, Converter Kit, Replacement, Water-Saving, UPC & CUPC Listed Toilet Repair Kit, For Use with Standard 2-inch Flush Valves - Amazon.com
FlushSaver Deluxe Kit | Colonial Lever | Chrome White | Two Piece Toilet | 2″ Drain – Water Saver Products
Dual Flush Toilet Conversion Kits
DANCO Water-Saving Toilet Total Repair Kit with Dual Flush Valve HYR451T - The Home Depot
WDONAY 10.24" Height Toilet Dual Flush Valve with Push Button, Toilet Fill Valve Dual Flush Toilet Repair Kit for 12"-14.37" Toilet Tank,Type-2 - Amazon.com
Fluidmaster Dual Flush Converter - Ace Hardware
Smarter Flush Quick Connect Dual Flush Conversion Kit with Handle at Tractor Supply Co.