part 2281730 Gasket Annovi Reverberi code 2281730 Details Annovi Reverberi number2281730 DescriptionGasket ItalianGuarnizioneQty per pump3 Also comes in KIT 42329 Water seal kit, Ø18 mm Fits these pumps Annovi Reverberi RHW 4 RHW 10.15 NRHW 13.12 NRHW 13.17 NRHW 15.15 N