This 3/4 inch static balancing valve with built in calibrated flow meter is made for potable water systems. Combination union solder end fittings make maintenance quick and easy. Adjust flow rate with one hand by turning bezel which is lockable with Allen screw. Eliminates need for external test equipment and cumbersome pressure calculations. Integrated 1/4 inch NPT threaded port at one end of valve for adding optional temperature pressure gauge or sensors.