Piston flush valve

Grohe 43544000 Adagio Single Flush Valve Discharge Piston and Base Sealing Washer - Multi-Colour

Suitable for use with the Grohe DAL Adagio single flush valve assembly 42137 000 - The Grohe DAL replacement piston 43544 000 is a genuine Grohe product - Existing pistons may differ in colour depending on age, usually either white, clear, or red/green -

American Standard CF-9805 Flushing Valve Spool with Manual Foot Press and Water Seal