part 820511 O-ring Ø 10,82x1,78 Annovi Reverberi code 820511 Details Annovi Reverberi number820511 DescriptionO-ring Ø 10,82x1,78 ItalianGuarnizione OR Ø 10,82x1,78Qty per pump1 Fits these pumps Annovi Reverberi RTX-SS 1 RTX-SS 100.100 N