These are not original jets but a superbly engineered alternative.
They fit the following Dellorto carburettors;
FHBB OVC PHBE PHBH PHBL PHBN PHF PHM PHSB PHVA PHVB SHB VHSA VHSB VHSC VHST
PHBE/PHB parts, PHBH parts, PHBL parts, PHBN / PHVA parts, PHBR parts, PHF parts, PHM Parts, PHVB parts, VHSA / VHSB / VHSC parts, VHSB 34 ROTAX MAX parts, VHSD / VHSG parts, VHSH parts, VHST parts, Jets, Needles, floats & calibrated parts, VHB / VHBZ / VHBT Parts, FRD parts, FZD parts, FRDA FRDB FRDC FRG FRPA parts.
They will fit all 12 - 17.5 mm and 22 mm Dellorto carburettors.