part 3660230 Piston guide Ø 25 Annovi Reverberi code 3660230 Details Annovi Reverberi number3660230 DescriptionPiston guide Ø 25 ItalianGuida pistone anteriore Ø 25Qty per pump3 Also comes in KIT 42852 Plunger guide kit, Ø25 mm Fits these pumps Annovi Reverberi RTX 2 RTX 50.300RTX 60.300 N