... (No.4) Inlet connection:M21.8*1/14", Outlet connection:G1/4", Advantage: with safety valve and ball 1,High quality and competitive price ... 2,Reliable after-sales service 3,OEM is available CO2 beer regulator,Applicable gas:CO2,Max. inlet pressure ... : 4BAR,Rate of flow:5m3/h,Inlet connection:M21.8*1/14",Outlet connection:G1/4",*Inlet and outlet thread can be made as your ...