Pretty sure that all the Chinese pumps and things are metric unless stated bsp thread size as some do but like you say there are adaptors out there that are compatible but will probably cost more than this pump itself but as all my fill probes are quick fit then i have no problem with the supplied fittings and i do like the quick fit tyre inflator. Put a adaptor or moisture trap at the base of the pump and use any hose fittings you already have,,