part 4180370 Ring Annovi Reverberi code 4180370 Details Annovi Reverberi number4180370 DescriptionRing ItalianAnello antiestrusioneQty per pump3 Also comes in KIT 43617 Water seal kit Fits these pumps Annovi Reverberi RTD 1 RTD 200.100 Annovi Reverberi RTD-L 1 RTD-L 160.100