The controller is suitable for all Germans bottles and adjusted to 50mbar from. Only 4 stars because the building together diverse wrench needs, and only 3 stars because of the Notice is missing the tube for leaks and to check how this works. (Fill a cup to part with H²O and to part with soap and applying stirring with a brush to the thread. The gas now hiring (not ignite) to leaks form soap bubbles). Please complete safety instructions, because not everyone knows with pressure-reducing valve systems. Some buy for the first time.
