part 2283310 Water seal Ø 20 Annovi Reverberi code 2283310 Details Annovi Reverberi number2283310 DescriptionWater seal Ø 20 ItalianTenuta acqua Ø 20Qty per pump3 Also comes in KIT 46112 Water seal kit, Ø20 mm Fits these pumps Annovi Reverberi JK 1 JK 18.16 H N