service kit: water seals KIT 42562 Water seal kit, Ø28 mm Annovi Reverberi code 42562 In the kit Part numberDescriptionPosition 1943160Gasket14 1943180Piston guide15 1140490O-ring16 1943150Gasket79 Fits these pumps Annovi Reverberi WHWL 3 WHWL 38.15 NWHWL 42.15 NWHWL 50.15 N