O2EII Pro BCD Low Pressure Inflator Flow RestrictorThe Analox BCD Low Pressure Inflator Flow Restrictor comes in handy especially in environments that restrict the use of a dome adaptor. Users will need to first switch on the tank valve and then connect the restrictor to their BCD inflator hose. This will result in a restricted flow of gas which will ensure a correct reading pressure and therefore a greater accuracy during gas analysis.