NTA TPG union straight reducer/ high quality nikel plated brass reducer/union straight brass push on fitting/brass union straight pneumatic fitting is used to connect tubing at different diameters at the same direction.The push-in locking nuts can be tightened both manually and with a spanner even in case of stiff tubes like the PA or the Hytrel Polyester. The special shape of the guiding cone ensures that the tube cannot be accidentally cut. it is suitable for use with nylon and urethane tube, large retaining force, it can be used for a wide range of pressures from a low vaccum up to a high pressure of 2.5MPa/362.5PSI, excellent resistance to high pressure and vacuum, excellent mechanical performance, Long threads to resist shock and vibration, excellent abrasion and corrosion resistance due to high phosphorus chemical nickel plating, Full flow, minimal pressure drop, one fitting for numerous applications: stock optimisation, manual connection and disconnection, compact and ergonomi...