The diverter design appears very similar to the Alpha 240 series probably made by Immergas.
If the leak is on the diverter section refurb kit 1000760 (Alpha part no. about £30.00) may well fit.
And if the leak is on the front diaphragm section refurb kit 1000765 (Aplha part no. about £15.00) may fit.
If the leak is on the diverter section refurb kit 1000760 (Alpha part no. about £30.00) may well fit.
And if the leak is on the front diaphragm section refurb kit 1000765 (Aplha part no. about £15.00) may fit.