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- Grohe DAL single flush valve assembly.
- Also known as a servo discharge valve, dump valve, or syphon.
- To be used with Grohe concealed cisterns with a single flush push button (not suitable for dual flush / twin button systems).
- Suitable for use with the Grohe DAL discharge piston (43544 000).
- Pre-assembled with new discharge piston/seals. Supplied as a 270mm assembly, which can be easily trimmed down to suit the cistern.
- The Grohe DAL single flush valve assembly (42137 000) is a genuine Grohe product, covered by a minimum 1 year Grohe manufacturer's guarantee.