Professional Pressure Gauge ISO9000 Competitive price Professional manufacturer Professional Pressure GaugeWe manufacture flange and fitting ourselves,so we have more ... ",2",2.5",3",4",6"2.Connection: R radial, bottom connection; A axial, center back male connection;3.Range:0-100psi,0-6000psi4 ... to your requirements. ISO9001:2000 CompanyCerrificate No. 00107Q12005ROS/3400 Professional Pressure Gauge