This cap fits the Sparmax SP-35 / SP-35C, Sparmax MAX-3 / MAX-4, Sparmax HB-040, Premi-Air G35 and the 'Neo for Iwata'CN andBCN airbrushes. Crown Cap for Sparmax SP-35, MAX, HB-040, DH-125, SP-20X, Squires Kitchen airbrush, Premi-Air G35 and Iwata Neo.