part 2840040 Piston Ø 12 Annovi Reverberi code 2840040 Details Annovi Reverberi number2840040 DescriptionPiston Ø 12 ItalianPistone Ø 12Qty per pump3 Also comes in KIT 2234 Plunger kit, Ø12 mm Fits these pumps Annovi Reverberi RMV 2 RMV 2 G20 DRMV 2.2 G24 D Annovi Reverberi RMW 2 RMW 2 G20 DRMW 2.2 G24 D