The Colors Of The Single 2-Inch Toilet Flush Valve Kit, Kohler Part, May Vary. Product Description always look for the KOHLER GENUINE PARTS logo. This flush valve was designed by KOHLER engineers to maintain original product performance and promote product longevity. Replace your old or leaky flush valve with an OEM KOHLER part. From the Manufacturer Protect the warranty on KOHLER products, always look for the KOHLER GENUINE PARTS logo. KOHLER GENUINE PARTS are designed by KOHLER engineers to maintain original product performance and promote product longevity. KOHLER GENUINE PART Flush valve assembly for Wellworth, Highline and various other KOHLER toilets Includes flush valve, 2" flapper, triangle gasket and bolts Optimizes toilet flushing performance Replaces black flush valve with red flapper.Also replaces part number 84246