part 1943170 Piston guide Ø 28 Annovi Reverberi code 1943170 Details Annovi Reverberi number1943170 DescriptionPiston guide Ø 28 ItalianGuida pistone anteriore Ø 28Qty per pump3 Fits these pumps Annovi Reverberi WHWL 3 WHWL 38.15 NWHWL 42.15 NWHWL 50.15 N