part 2820430 Sealing system Annovi Reverberi code 2820430 Details Annovi Reverberi number2820430 DescriptionSealing system ItalianSistema di tenuta secondarioQty per pump3 Also comes in KIT 42159 Water seal kit, Ø20 mm Fits these pumps Annovi Reverberi RTP 3 RTP 30.500 N APRTP 30.600 N APRTP 38.500 N AP