For the use of dockside water, this innovative system stably reduces the pressure to 3 bar, protecting the piping from potential damage. The compact device, equipped with an adjustable pressure regulator and orientable brass check valve, ensures a safe and constant flow. The dockside water hose can be easily connected using a gardening snap fitting (code 36.189.02). The outlet thread is 3/4" BSP. Even if the system remains connected to the dock, the pressure is maintained stable at 3 bar, regardless of the supply network pressure.