The Ralston QTHA-2MSA-XH 1/4" Male High Pressure x Female Quick-test Adapter connects a female high pressure 60° coned and threaded pressure fitting to a Quick-test hose. It is excellent for connecting to Autoclave Engineers, Butech, HIP (High Pressure Equipment), Parker or equivalent High Pressure coned and threaded connections, valves, tees and unions. The metal to metal seal provides leak-free service.