service kit: water seals KIT 42844 Water seal kit, Ø36 mm Annovi Reverberi code 42844 In the kit Part numberDescriptionPosition 3660510Sealing system15 3660530Water seal16 3660520Ring17 3660540Gasket19 3660500Ring20 3660550Ring20 1320360O-ring22 Fits these pumps Annovi Reverberi RTX 1 RTX 100.120 N