SEPTLS312RP22320 - Western Enterprises RP Series F.R.O.G. Preset Flow Regulators - RP22320,Western Enterprises,RP22320,RP22320" /> Body Material - Machined Brass Flow Cap. Max - 22 SCFH Gas Type - Carbon Dioxide (CO2) Height - 1 3/8 in Inlet Connection - CGA 320