part 4040150 Piston guide Ø 36 Annovi Reverberi code 4040150 Details Annovi Reverberi number4040150 DescriptionPiston guide Ø 36 ItalianGuida pistone posteriore Ø 36Qty per pump3 Also comes in KIT 43765 Plunger guide kit, Ø36 mm Fits these pumps Annovi Reverberi RTX-SS 1 RTX-SS 100.100 N