Regulator Bushing Adaptors 9/16 in - 18 Oxygen F/M Size B RH/LH Western Enterprises Regulator Bushing Adaptors WARNING: This product can expose you to Lead a chemical known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov Thread Direction: RH Thread - TPI or Pitch: 9/16 in - 18 Pressure [Nom]: 125 PSIG Type: Check Valve Size 1: B-Size - B-Size Gas Type: Oxygen Wt.: 1.26 lb Connection Type: Female/Male CGA No.: CGA-022