part 1320361 O-ring Ø 47,35x1,78 Annovi Reverberi code 1320361 Details Annovi Reverberi number1320361 DescriptionO-ring Ø 47,35x1,78 ItalianGuarnizione OR Ø 47,35x1,78Qty per pump3 Also comes in KIT 43519 Water seal kit, Ø36 mm Fits these pumps Annovi Reverberi RTX-SS 1 RTX-SS 100.100 N