High quality pretty competitive price. Permissble Medium: AirMax.Operating Pressure : 10BarAmbience Temperature:-40°Cto+80°C(1)3/8"-18NPT (2)3/8"-18NPTJD NO.:8073C OEM:44510-1090 DATA:PORTS:1+2=R3/8 APPLICATION:SCANIA,VOLVO,MAN,Renault,MERCEDES-BENZ,IVECO,DAF, Website:www.jdbrake.com CHECK VALVE OEM:44510-1090