900443367 90 degree swivel elbow

1/8"M x 6mm swivel elbow.   Used on clamping cylinders.  These elbows are on the ends of the clamping cylinders and have 6mm plastic tubing connected to them.  The connectors are push to lock.  Simply push the hose in and it locks.  To remove the hose, push in on the hose as you push on the lock ring on the end of the fitting and then pull the hose out while you are holding the lock ring in.