Quick-test Cap and Chain seal any male Quick-test adapter to 5000 PSI (345 bar). They install on any Quick-test adapter for permanent installation in the field. This allows you to leave your ralston fitting in your system while it is in use and then when you are ready to carry out a calibration just undo the cap and connect up the ralston hose. Add in a non return valve to your ralston fitting and you can connect under pressure – what could be easier. Product code: QTFT
