part 3720580 Ring Annovi Reverberi code 3720580 Details Annovi Reverberi number3720580 DescriptionRing ItalianAnello antiestrusioneQty per pump1 Fits these pumps Annovi Reverberi RQV 1 RQV 2.5 G30 D Annovi Reverberi RQW 1 RQW 2.5 G28 D