4 6 8 10 12 Mm Od Speed Controller Air Pneumatic Flow Speed Control Valve - Pneumatic Parts - AliExpress
Pneumatic Push In Air Fittings – Speed controller /Flow Control valve 4mm tubing, R1/4 BSP - Air Parts Australia
Pneumatic Speed Controller Valve, Pace Pneumatics specialized in production pneumatic fitting, push in fitting, air fitting, one touch tube fitting, nickel plated brass push in fitting, all metal push in fitting, compact