The Precision V-Clamp provides superior control of flow rate. Other clamps on administration sets need frequent attention and care. This permits the nurse to devote her valuable time to functions more important than readjusting the clamp. The patient benefits by minimization of his exposure to excessive or sub-marginal flow rates. A nurse should check her patients in accordance with the rules of accepted practice, not in accordance with the physical properties of plastic tubing. The Precision V-Clamp, an out-growth of space age research, is designed to provide much more uniform flow rates.