Western Enterprises Regulator Adaptor Checkvalve Set (312-WE-61) 1 SetEasily mounts on outlet bushing o nay regulator having a B Size outlet This model has the same flow capacity as the torch type (1200 SCFH at 50 PSIG) when installed on a regulator Check valve is easily seen and is less subject to contamination, abuse and damage CGA No. = CGA 022, CGA 023 Thread Direction = RH LH Gas Type = Oxygen, Fuel Gas Thread TPI or Pitch = 9 16 in 18 Includes = Set CV 30R & CV 31L Connection Type = Female Male Size 1 = B Size B