MSA (Mine Safety Appliances) 467895 .25 LPM Model RP Fixed Flow Regulator For RP Style Calibration Gas Cylinders, English, 8.437 fl. oz., Plastic, 4.5" x 9" x 6.5";

MSA 0.25 LPM fixed flow regulator is designed for R and RP calibration cylinders. The fixed flow design provides constant and accurate flow to the instrument pump or aspirator. Approved for all MSA calibration gases.