Mandatory for all domestic and commercial small gas bottle systems (e.g. heaters, gas barbecues, etc.) used indoors as well as commercial small gas bottle systems used outdoors (e.g. Christmas markets)! Consisting of: Type EN61-DS low pressure regulator with safety devices and medium pressure hose line (rubber with textile lining; hose dimensions 6.3 x 3.5 mm), G ¼ LH union nut x G ¼ LH union nut x 400 mm.