part 2283340 Piston guide Ø 22 Annovi Reverberi code 2283340 Details Annovi Reverberi number2283340 DescriptionPiston guide Ø 22 ItalianGuida pistone posteriore Ø 22Qty per pump3 Fits these pumps Annovi Reverberi JK 1 JK 21.15 H N