part 2820390 Piston guide Ø 20 Annovi Reverberi code 2820390 Details Annovi Reverberi number2820390 DescriptionPiston guide Ø 20 ItalianGuida pistone posteriore Ø 20Qty per pump3 Also comes in KIT 42160 Plunger guide kit, Ø20 mmKIT 42558 Plunger guide kit, Ø20 mm Fits these pumps Annovi Reverberi RTP 3 RTP 30.500 N APRTP 30.600 N APRTP 38.500 N AP