"C/O 1 1/2 IN. L CRES PIPET TIP CONNECTED TO A 2 IN. L POLYTETRAFLUOROETHYLENE TUBING WHICH IS CONNECTED TO A 3 IN. L PIECE OF METAL; MIXES DILUTED SERUM,PLASMA OR URINE SAMPLES IN SPIN CUP AND THEN ANALYZES THOSE DILUTED SAMPLES TO DETERMINE CONCENTRATION OF SODIUM,POTASSIUM OR CHHLORIDE IONS; USED W/IL MONARCH CHEMISTRY SYSTEM"