part 3720600 Ring Annovi Reverberi code 3720600 Details Annovi Reverberi number3720600 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