part 3660341 O-ring Ø 12x2 Annovi Reverberi code 3660341 Details Annovi Reverberi number3660341 DescriptionO-ring Ø 12x2 ItalianGuarnizione OR Ø 12x2Qty per pump3 Fits these pumps Annovi Reverberi RTX 1 RTX 30.500 N