... , black bezel,glass window(250bar,6bar) with CE certif PRESSURE REGULATORdual gauges,black steel and explosion-proof case, black bezel,glass window ... ,G5/8,BSPT, NPT,etc.)outlet connection: G1/4,inlet pressure: 200baroutlet pressure: 4barflow rate: 0-5m3/hsafty release: 4barwith check valve ...