An excellent pressure calibrator for gas cylinder regulator SPMK2000G pressure reducer calibration instrument (Patent No.:200920108334.5) is made up of ... an ideal instrument to calibrate pressure regulator , such as :oxygen acetylene, argon ,CO2, N2, H2 ,gauges, etc. No need to disassemble ... ( 300×300×150 ) mmNet weight10 kgWorking placeLaboratory SPMK 2000G Pressure reducer calibration instrument