service kit: water seals KIT 43410 Water seal kit, Ø18 mm Annovi Reverberi code 43410 In the kit Part numberDescriptionPosition 1942700Gasket16 1942690Water seal18 820490O-ring20 Fits these pumps Annovi Reverberi RGX 2 RGX 15.50 NRGX 22.50 N Annovi Reverberi RGXA 1 RGXA 4G70 N