ROSA quick coupling for 1/2" garden hose < span style="color: black"> quality ABS plastic and processing stop fuse for automatic closing of the water flow when removing the gun, sprinkler or when switching to another tap - the water pressure closes the sealing movable flap inside the quick coupling with its own pressure three-point detection quick-connect system compared to cheaper two-point - holds the quick-connect better in the axis and more firmly better tightness maximum pressure 1030 kPa