Need to transition between tube sizes without turning your air-line layout into a spaghetti incident? The AirCraft PU Hose Fitting Reducer 6mm-4mm (SPG06-04) is a compact push-in pneumatic reducer designed to connect a 6mm tube run to a 4mm tube run quickly and securely.

It’s ideal for tidy compressed-air routing in workshops, spray-gun setups, pneumatic control lines, and anywhere you need a clean step-down connection with minimal fuss and easy maintenance.