service kit: water seals KIT 43620 Water seal kit Annovi Reverberi code 43620 In the kit Part numberDescriptionPosition 840300Anello appoggio Ø 20 Ring14 840290seal15 2340320Anello antiestrusione Ring16 1940470seal18 820490Guarnizione OR Ø 34,65x1,78 O-ring20 2980300Anello tenuta Ring57 Fits these pumps Annovi Reverberi RG 1 RG 24.20 N